L N TREFETHEN TALKS STATES (31) Alabama, Arizona, California, Colorado, Connecticut, Delaware, Florida, Georgia, Idaho, Illinois, Indiana, Maryland, Massachusetts, Michigan, Minnesota, Missouri, Montana, New Hampshire, New Jersey, New York, North Carolina, Ohio, Oregon, Pennsylvania, Rhode Island, Tennessee, Texas Utah, Virginia, Washington, Wisconsin COUNTRIES (32) Australia, Austria, Belgium, Brazil, Canada, China, Czech Republic, Finland, France, Germany, Hong Kong, Israel, Italy, Japan, Korea, Lithuania, Maryland, Netherlands, New Zealand, Norway, Portugal, Puerto Rico, Russia, Saudi Arabia, Singapore, South Africa, Spain, Sweden, Switzerland, Taiwan, Turkey, UK, USA ---- 2020 ---- Tue 21 Jan 2020: Oxford internal seminar "Vandermonde with Arnoldi" Thu 06 Feb 2020: Trondheim Tue 17 Mar 2020: Brown University Wed 18 Mar 2020: Harvard University Thu 19 Mar 2020: MIT Tue 09 Jun 2020: SIAM student conference, Oxford Tue 07 Jul 2020: SIAM John von Neumann Lecture, Toronto "Rational functions" Tue 07 Jul 2020: Minisymposium at SIAM Annual Meeting, Toronto "Advanced AAA and lightning approximation" Tue 07 Jul 2020: SIAM/CAIMS Annual Meeting, Toronto "AAA approximatoin: analytic vs. harmonic" xxx xx Jul 2020: 8th Euro. Congress of Maths., Slovenia ---- 2019 ---- Wed 09 Jan 2019: inaugural joint UCL-Imperial NA seminar, London hosts Sheehan Olver and Timo Betcke; also present Dave Hewett "Laplace equation in a polygon" Thu 10 Jan 2019: InFoMM 5th yr cohort (10 of the 11), Oxford Chebfun crash course Tue 15 Jan 2019: NA Group internal seminar, Oxford Chair Alberto Paganini. About 25 people incl Chapman & Seifert. "Quantifying the ill-conditioning of analytic continuation" Tue 19 Feb 2019: NA Group internal seminar, Oxford Chair Alberto Paganini. "Univariate and multivariate polynomials in numerical analysis" Tue 26 Feb 2019: publicized final lecture of my Sci Comp course "Who invented the great numerical algorithms?" (For the first time I propose a 21st century entry: compressed sensing) 27-29 Mar 2019: SANUM, Pretoria, South Africa Tue 02 Apr 2019: Stellenbosch U. "Smooth random functions and smooth random ODEs" Fri 03 May 2019: U Edinburgh Mathematics dept "Solving differential equations in Chebfun" Chair Lyuba Chumakova. About 8 people. Fri 03 May 2019: U Edinburgh Mathematics colloquium, Scotland "A new method for solving the Laplace and Helmholtz equations" Chair Lyuba Chumakova. About 20 people. 22-24 May 2019: Fastrelax meeting, Lyon, France "New Laplace and Helmholtz solvers" 29-30 May 2019: Wilkinson birthday meeting, Manchester "Wilkinson, numerical analysis, and me" Recorded. 40 or so including Dongarra, Higham, Moler, M Wright. Fri 07 Jun 2019: Reading SIAM-IMA student chapter, Reading "Random functions, random ODEs, and Chebfun" 25-28 Jun 2019: Strathclyde meeting, Scotland "A new Laplace solver for regions with corners" Jul 2019: ICIAM Valencia, Spain "AAA_Lawson for rational minimax approximation" Tue 15 Oct 2019: Internal Seminar, Oxford "Wilkinson, numerical analysis, and me" Mon 04 Nov 2019: U. Cambridge, joint Imperial-Cambridge NA students "Polynomials and rational functions in numerical computation" host Matt Colbrook Mon 09 Dec 2019: INI complex variables workshop, Cambridge "Master class 1: Contour integrals" Tue 10 Dec 2019: INI complex variables workshop, Cambridge "Master class 2: Polynomial and rational approximation" Wed 11 Dec 2019: INI complex variables workshop, Cambridge "Master class 3: Conformal mapping and harmonic functions" ---- 2018 ---- some date or other, KU Leuven, Belgium hypercube Brisbane, Australia ANZIAM, Australia Mon 29 Jan 2018, Queensland U Technology, Brisbane, Australia "Random functions, random ODEs, and Chebfun" Tue 30 Jan 2018, Monash U, Melbourne, Australia Thu 15 Feb 2018 (?) ENS-Lyon, AriC group, France "Minimax approximation of functions" Tue 27 (?) Feb 2018 U Geneva, Switzerland chair Martin Gander "Random functions, random ODEs, and Chebfun" Mon 14 May 2018, Structured Matrix Days, ENS Lyon, France "Axis-alignment in low-rank and other structures" Mon 28 May 2018, Toulouse, France "Axis-alignment in low rank and other structures" Tue 29 May 2018, Toulouse, France "A tour of Chebfun" Fri 01 Jun 2018, 2-day conference in Lille, France "Numerical computation with rational functions" Thu 12 Jul 2018, ICOSAHOM, Imperial College, London "Rational functions for spectral accuracy" Wed 12 Sep 2018, Aziz lecture, U Maryland, Maryland "Smooth random functions and smooth random ODEs" Thu 13 Sep 2018, U Maryland, Maryland "Cubature, approximation, and isotropy in the hypercube" Tue 25 Sep 2018, Flatiron institute, New York, New York Host: Leslie Greengard. About 15 people incl Rokhlin, Barnett. "Numerical computation with rational and harmonic functions" Wed 26 Sep 2018, Yale Applied Mathematics seminar, Connecticut Host: Kirill Serkh and Vladimir Rokhlin. About 15 people. "Numerical computation with rational and harmonic functions" Fri 28 Sep 2018, NYU NASC seminar, New York Host: Michael Overton. About 25 people. "Numerical computation with rational and harmonic functions" Mon 01 Oct 2018, Columbia Applied Mathematics seminar, New York Host: Kyle Mandli and Qiang Du. About 25 people. "Numerical computation with rational and harmonic functions" Thu 04 Oct 2018, Kliakhandler lecture, Mich Tech U, Michigan Fri 05 Oct 2018, Michigan Tech U, Michigan talk at 4:05 Tue 06 Nov 2018, Oxford NA Group internal seminar, Oxford Host: Alberto Paganini. About 35 people. "Solving Laplace's equation in a polygon" Wed 14 Nov 2018, lecture with honorary degree, U Fribourg, Switzerland J.-P. Berrut, around 50 people. "Discrete or continuous?" Thu 06 Dec 2018, Raymond Chan 60th, Chinese U, Hong Kong "Laplace equation in a polygon" ---- 2017 ---- Tue 31 Jan 2017, U Oxford, NA Group internal seminar, Oxford "Approximation and quadrature in perturbed points" Thu 23 Feb 2017, King's College London chair Sasha Putshnitski "Cubature, approximation, and isotropy in the hypercube" Tue 28 Feb 2017, Patavina Colloquium, Dept. of Maths., U Padova, Italy chair Fabio Ancona. 60-65 people incl Sommariva, Fasso, Piazzon. "Cubature, approximation, and isotropy in the hypercube" Mon 06 Mar 2017, Applied Math. (90 min), U Washington, Washington about 20 people. "A tour of Chebfun, incl ODEs and PDEs" Mon 06 Mar 2017, Applied Math., U Washington, Washington chair Anne Greenbaum. About 60 people incl LeVeque, Moe, Ketcheson, O'Malley, Nazareth, Lumsdaine. "Cubature, approximation, and isotropy in the hypercube" Thu 09 Mar 2017, math seminar, Washington State U, Washington chair David Watkins. About 25 people in a room with tables. "Cubature, approximation, and isotropy in the hypercube" Fri 10 Mar 2017, Watkins funct anal class, Wash. State U, Washington About 8 people. "Chebfun". Thu 16 Mar 2017, Boise State U, math colloquium, Idaho Chair: Grady Wright "Cubature, approximation, and isotropy in the hypercube" Fri 17 Mar 2017, Mech & Biomed. Engr. colloq, Boise State U, Idaho Chairs: Grady Wright and Inanc Senocak. "A tour of Chebfun" Wed 22 Mar 2017, Math colloquium, U Utah, Utah Chair: Peter Alfeld (who introduces me as the leading numerical analyst in the world). About 60 people incl Johnson, Milton, McPherdon, Golden "Mathematics of the Faraday cage" Wed 22 Mar 2017, Applied math seminar, U Utah, Utah Chair: Peter Alfeld. About 25 people. "Cubature, approximation, and isotropy in the hypercube" Thu 23 Mar 2017, Brigham Young U, Applied math seminar, Utah Chair: Jared Whitehead. Around 20 people. "Cubature, approximation, and isotropy in the hypercube" Thu 23 Mar 2017, Focus on Math talk, Brigham Young U, Utah Chair Jared Whitehead, around 200 people. "Four bugs on a rectangle" Tue 16 May 2017, U Oxford, NA Group internal seminar (25 min) around 40 people incl Chapman, Burrage, Beyaev, Allwright. "Random functions in Chebfun" Mon 19 Jun 2017, Householder meeting, Vir. Tech (20 min), Virginia Outstanding audience of 70 or 80, incl many stars. "Block operators and spectral discretizations" Fri 30 Jun 2017, Strathclyde NA meeting, Chebfun minisymp, Scotland "From random functions to SDEs" Wed 12 Jul 2017, SIAM Annual Meeting, Pittsburgh (15 min), Pennsylvania Flipped classroom: demos + handouts "What is a random smooth function?" Thu 27 Jul 2017, LMS summer event for undergraduates, U Manchester Chair James Montaldi. "From polynomial interpolation to Chebfun" Thu 27 Jul 2017, LMS summer event for undergraduates, U Manchester Chair James Montaldi. "Four bugs on a rectangle" Fri 01 Sep 2017, Cornell U, New York "Random functions, random ODEs, and Chebfun" 31 Jul - 04 Aug 2017 Crouzeix symposium, AIMS, California Mon 18 Sep 2017, Di Prima Lecture, RPI, New York Mon 25 Sep 2017, Math, MIT "Random functions, random ODEs, and Chebfun" sometime this month: NYU Thu 28 Sep 2017, SUNY Stony Brook, New York guest lecture in Chris Bishop's course Thu 28 Sep 2017, SUNY Stony Brook, New York colloquium "Random functions, random ODEs, and Chebfun" Thu 19 Oct 2017 (?), AriC team, ENS-Lyon, France "Chebyshev series" Thu 16 Nov 2017 (?), AriC team, ENS-Lyon, France "Numerical computation with rational functions" Nov 2017 U Auckland (several talks?), New Zealand Dec 2017 NZMS Colloq., U Auckland (several talks?), New Zealand Mon 11 Dec 2017 National U Singapore, Singapore Chair Kim-chuan Toh "Random functions, random ODEs, and Chebfun" ---- 2016 ---- Fri 22 Jan 2016, U Oxford, Fridays@4 talks "Scientific writing" Tue 16 Feb 2016, NA Group internal seminar, Oxford "Ten things you should know about quadrature" Fri 04 Mar 2016, Heriot-Watt U, Scotland chair Lehel Banjai "Ten things you should know about quadrature" Fri 04 Apr 2016, Chebfun minisymposium at BAMC 2016, Oxford "ODE IVPs/BVPs and a new textbook" Thu 31 Apr 2016, U Carlos III, Madrid, Spain Chair Chus Sanz-Serna "Ten things you should know about quadrature" xxx xx Apr 2016, SANUM conference, U Stellenbosch, South Africa "Ten things you should know about quadrature" xxx xx Apr 2016, SANUM conference, U Stellenbosch, South Africa "Numerical solution of ODEs" Tue 10 May 2016, NA Group internal seminar (25 min), U Oxford "Low-rank compression of functions in 2D and 3D" Thu 19 May 2016, Stanford U ICME colloquium, California Chair Michael Saunders, 60-70 people "Ten things you should know about quadrature" Tue 07 Jun 2016, NA Group internal seminar at Oxford (25 min) "Bivariate approximation and Euclidean degree" Mon 11 Jul 2016, SIAM Annual Meeting, Boston, Massachusetts around 35 people, incl Moler and Knuth "Chopping a Chebyshev series" Fri 23 Sep 2016, Dartmouth College Math, New Hampshire Chair Alex Barnett "Cubature, approximation, and isotropy in the hypercube" Fri 07 Oct 2016, NYU, New York chair Michael Overton "Cubature, approximation, and isotropy in the hypercube" Tue 18 Oct 2016, NA Group internal seminar at Oxford 25-30 people "ODE IVPs and BVPs" Wed 14 Dec 2016, TU Munich, Dept. colloquium, Germany chair Felix Krahmer, around 50 people "Cubature, approximation, and isotropy in the hypercube" ---- 2015 ---- Fri 16 Jan 2015, Modern Applics Complex Vars, BIRS, Banff, Canada around 40 people. Final talk of the week and videoed. "Mathematics of the Faraday cage" Tue 20 Jan 2015, Laurence Halpern 60th birthday, Paris, France attendees include Nedelec, Engquist, Rauch, Brenier, Tuckerman "Mathematics of the Faraday cage" Mon 09 Feb 2015, Queen Mary U London Maths dept., London around 30 people incl Fyodorov, Beck, Prellberg, Just, Jackson "Mathematics of the Faraday cage" Tue 03 Mar 2015, NA Group internal seminar, U Oxford "Mathematics of the Faraday cage" Mon 20 Apr 2015, Nieuwland Lecture, U Notre Dame, Indiana chair Andrew Sommese, around 50 people. Alas the room holds 300 and the talk hasn't been advertised well; the talk falls flat. "Discrete or continuous?" Tue 21 Apr 2015, Applied Math, U Notre Dame, Indiana chair Andrew Sommese, around 25 people "Euler-Maclaurin and Gregory inteprolants" Wed 22 Apr 2015, U Western Michigan, Kalamazoo, Michigan chairs Steve Mackey & Kirk Korista, around 40 people "Mathematics of the Faraday cage" Fri 24 Apr 2015, U Western Michigan, Kalamazoo, Michigan chair Nil Mackey "Numerical computing with Chebfun" Mon 27 Apr 2015, Michigan Tech U, Michigan Chair Mark Gockenbach, big crowd "Discrete or continuous?" Thu 30 Apr 2015, Wisc. Inst. of Discovery, U Wisconsin Chair Steve Wright, around 30 people. "Mathematics of the Faraday cage" Fri 01 May 2015, U Wisconsin Jordan Ellenberg is present and asks many good questions. "Numerical computing with Chebfun" Fri 15 May 2015, PDE CDT course students, Oxford chair Yves Capdebosq, about 15 people "Mathematical writing" Tue 26 May 2015, NA Group internal seminar, U Oxford joint action by the whole group "Early volumes of MC, SIREV, NM, BIT, SINUM, IMAJNA" Sat 06 Jun 2015, MathWorks conference, Boston, Massachusetts chair Pieter Mosterman, around 80 people "Chebfun: a continuous analog of MATLAB" Wed 24 Jun 2015, N. A. meeting, Strathclyde, Scotland Chebfun minisymposium "Initial value problems and a new ODE textbook" Mon 10 Aug 2015, ICIAM Beijing, China "Mathematics of the Faraday cage" Fri 18 Sep 2015, NYU NASC seminar, New York "Euler-Maclaurin, Gregory, and other equispaced interpolants" Wed 21 Oct 2015, Balliol, special event for students, Oxford "Discrete, continuous, and Chebfun" Tue 27 Oct 2015, NA Group internal seminar, U Oxford "Resonance chapter in ODE book" Wed 28 Oct 2015, U Cardiff, Wales chair Tim. Logvinenko "Mathematics of the Faraday cage" Wed 18 Nov 2015, Inaugural OCIAM dinner, Christ Church, U Oxford chairs Goriely and Chapman, around 50 people "Mathematics of the Faraday cage" (and we had a microwave oven!) Tue 24 Nov 2015, Oxford Invariants Society (ugrad) In a big room, only about 13 people attend. "Mathematics of the Faraday cage, or, Why is it so hard to see into your microwave oven?" Tue 01 Dec 2015, NA Group internal seminar at U Oxford "Problem Squad" (joint presentation with students) Fri 04 Dec 2015, U Manchester NA seminar, Manchester chair Sam Relton, about 25 people incl Higham, Glendinning, Guettel "Euler-Maclaurin, Gregory, and other equispaced interpolants" ---- 2014 ---- Tue 14 Jan 2014, TU Hamburg, Germany Chair Siegfried Rump "How Chebfun solves ODEs and eigenvalue problems" Wed 15 Jan 2014, U Osnabrueck, Germany Chair Stefan Kunis "The exponentially convergent trapezoid rule" Mon 27 Feb 2014, EPFL, Switzerland Chair Alfio Quarteroni "Continuous analogues of matrix factorizations" Wed 12 Feb 2014, U Lugano, Switzerland Chair Kai Hormann "Numerical computing with Chebfun" Mon 10 Mar 2014, U Tokyo, Japan Chair Yuji Nakatsukasa, around 15 people "Euler-Maclaurin and Gregory interpolants" Thu 27 Mar 2014, Mathematics colloquium, U Geneva, Switzerland Chair Anders Karlsson "Six myths of polynomial interpolation and quadrature" Mon 31 Mar 2014, Dept of Math., North Carolina State U, USA "Continuous analogues of matrix factorizations" xxx xx Mar 2014, EPASA2014, Tsukuba, Japan Chair Tetsuya Sakurai "The exponentially convergent trapezoid rule" Fri 04 Apr 2014, colloquium, Virginia Tech, USA Chair Mark Embree "Continuous analogues of matrix factorizations" Fri 04 Apr 2014, SIAM student chapter, Va Tech, Virginia "Numerical computing with Chebfun" Thu 10 Apr 2014, ENS Lyon, France Chair Nicolas Brisebarre "Polynomial and rational approximation in Chebfun" Wed 28 May 2014, Vanderbilt U, eve talk at Constr Funcs 2014, Tennessee 75 minutes, around 60 people "Ten things you should know about quadrature" Thu 29 May 2014, Vanderbilt U, Constr Funs 2014 (Saff 70th), Tennessee "Approximation theory seen through the eyes of Chebfun" Fri 06 Jun 2014, Alan Turing symposium, Manchester Chair David Silvester, around 50 people "Discrete or continuous?" Mon 09 Jun 2014, short course, Cambridge Center for Analysis 2-6 PM "Polynomials, rational functions, and Chebfun" Wed 11 Jun 2014, Balliol research consilum, Oxford Chair Les Green, around 25 people "Chebfun" Sun 22 Jun 2014, British Soc. of History of Maths, Oxford around 35 people "Discrete or continuous?" Mon 04 Aug 2014, Dept. of Math. Sci., KAIST, Korea Chairs Chang-ock Lee and Dongsu Kim "Numerical computing with Chebfun" Thu 07 Aug 2014, Intl. Conf. Math. Softw., Hanjang U, Korea "Chebfun as a software project" Wed 10 Sep 2014, Stony Brook Math Club, New York around 25 people "Numerical computing with Chebfun" Wed 10 Sep 2014, Stony Brook, New York around 25 people, incl Dennis Sullivan, Warren Smith (Bishop absent) "Mathematics of the Faraday cage" Fri 19 Sep 2014, Applied Math, Columbia U, New York Chair Qiang Du, around 20 people incl Michael Weinstein "Mathematics of the Faraday cage" Fri 26 Sep 2014, NYU applied math seminar, New York "Mathematics of the Faraday cage" Fri 24 Oct 2014, Schlumberger Cambridge Chaotic chair Evren Yarman, around 12 people incl Paul Childs "Numerical computing with Chebfun" Fri 14 Nov 2014, LMS Naylor Prize Lecture, London Terry Lyons chair, around 100 people Brian Davies precedes me with an affiliated talk "Mathematics of the Faraday cage" Tue 09 Dec 2014, U Kent Maths Dept colloquium, Kent, Ohio Chair Ana Loureiro, but poorly organized with around 15 people "Mathematics of the Faraday cage" ---- 2013 ---- Tue 08 Jan 2013, Dissipative spec thy conf, Cardiff, Wales Marletta et al "Algorithms based on discretizing a Hankel contour" Tue 15 Jan 2013, NA Group internal seminar, Oxford "Algorithms based on discretizing a Hankel contour" Fri 15 Feb 2013, introd to 6th SIAM student chap mtg, Oxford around 70 people BMI (no title given, but this is the subject) Wed 13 Mar 2013, CS, KU Leuven, Belgium chair Daan Huybrechs, around 80 people "Chebfun and Chebfun2" Tue 09 Apr 2013, opening plenary at BAMC #55, Leeds chair David Hughes, around 220 people "The exponentially convergent trapezoidal rule" Fri 12 Apr 2013, f(A) 2013 workshop, U Manchester around 60 people "Projecting a matrix onto a disk" Thu 18 Apr 2013, NA Group seminar, Oxford chair Endre suli "The exponentially convergent trapezoidal rule" Thu 25 Apr 2013, U of Zurich, Switzerland chair Stefan Sauter "The exponentially convergent trapezoidal rule -- history and surprisingly many applications" Thu 25 Apr 2013, U of Zurich, Switzerland chebfun session Mon 29 Apr 2013, U Strathclyde, Scotland "Gaussian elimination as an iterative algorithm" Tue 30 Apr 2013, U Dundee chair Mariya Ptashnyk "How Chebfun solves ODEs and eigenvalue problems" Wed 16 May 2013, U Magdeburg, Germany chair Peter Benner, around 35 people "Numerical integration in scientific computing: trapezoidal rule revisited" (Benner insisted on this title) Thu 17 May 2013, U Magdeburg, Germany chair Peter Benner "Cakes and Chebfun" xxx xx Jun 2013, Chebfun minisymp, Strathclyde mtg "What would Diskfun look like?" Wed 10 Jul 2013, SIAM Past President's Address, San Diego, California around 400 people "Chebfun" Wed 10 Jul 2013, SIAM Annual Meeting, San Diego, California Chebfun minisymposium. No PowerPoint, just demos & discussion. "Chebfun and approximation theory" Thu 08 Aug 2013, Overton 60th bday, Vancouver, Canada opening plenary lecture with around 100 people "Eigenvalue avoidance" Fri 13 Sep 2013, New Jersey Inst of Tech, New jersey Applied Math seminar, around 80 people "How Chebfun solves ODEs and eigenvalue problems" Mon 16 Sep 2013, Sci Comp seminar, Cornell U, New York Around 30 people (average age quite high! -- for these people I am a blast from the past) "Algorithms based on function values at roots of unity" Mon 16 Sep 2013, Cornell U around 50 people "Chebfun" Fri 20 Sep 2013, numer anal/sci comp sem, NYU, New York Audience includes Lax, Peskin, Berger, Overton (not Greengard) "Algorithms based on function values at roots of unity" Fri 27 Sep 2013, Balliol 750th anniversary just 15 or so people (much about four bugs on rectangle) "Are mathematicians interested in numbers?" Tue 29 Oct 2013, LMS Com Sci Colloq 2013 around 45 people "Numerical computation with functions instead of numbers" Fri 01 Nov 2013, Cambridge Archimedeans, Cambridge chairs James Bell, Daochen X, around 45 people, 7-8 pm "The flying trapezium rule" Tue 05 Nov 2013, NA Group internal seminar, Oxford around 30 people Wed 11 Dec 2013, Process Systems Sem, Imperial C., Lonbdon Chair Krishnan, around 40 people incl Spencer Sherwin "Numerical computing with Chebfun" ---- 2012 ---- Sat 07 Jan 2012, Joint Math Meeting, Boston, Massachusetts Contributed talk, around 25 people "Robust rational interpolation and least-squares" Thu 23 Feb 2012, SIAM student chap annual mtg, Oxford Chair Matt Hennessey, around 80 people "Six myths of polynomial interpolation and quadrature" Tue 13 May 2012, Distinguished colloq, Maths, U. Reading chair Michael Levitin, around 40 people "Robust Pade approximation via SVD" Thu 22 Mar 2012, Maths colloq, U of Edinburgh Chair Jared Tanner, around 70 people "Jacobi 1815, Cauchy 1826" Tue 27 Mar 2012, British Applied Maths. Colloq, UCL, London Contributed talk, around 25 people "Jacobi 1825, Cauchy 1826" Wed 28 Mar 2012, British Applied Maths. Colloq, UCL, London Chair Jean-Marc Vandenbroeck, around 150 people. Not so successful. After-dinner speech. Theme: my father and the bathtub. Mon 16 Apr 2012, OUPC = Oxford Undergrad Physics Club Chair Chris Palmer, around a dozen physics undergrads, 75 min "Numerical computing with Chebfun" Fri 18 May 2012, SIAM Natl Student Chap Conf, U. Manchester "How Chebfun solves ODEs and eigenvalue problems" Tue 22 May 2012, NA Group internal seminar, Oxford "Jacobi 1825, Cauchy 1826" Tue 29 May 2012, Distinguished Lect, Poly U, Hong Kong Chair Xiaojun Chen. Around 20 incl I Sloan, T Kelley, Shuhuang Xiang "How Chebfun solves differential equations and eigenvalue problems" Wed 30 May 2012, Intl Conf Appl. Math. 2012, City U, Hong Kong Around 75 people incl Sherratt, Shen, Newell, Maini, Ya Yan Luk, C-W Shu "How Chebfun solves differential equations and eigenvalue problems" Sat 09 Jun 2012, Tony Chan 60th bday conf, IPAM, UCLA, California Around 60 people. "How Chebfun solves differential equations and eigenvalue problems" Thu 28 Jun 2012, Intl Conf Constr Compl Approx, Lille, France chairs Beckermann & Matos "Highlights of ATAP" Mon 09 Jul 2012, SIAM Annual Meeting, Minneapolis, Minnesote "Jacobi 1825, Cauchy 1826 Mon 17 Sep 2012, "Chebfun and Beyond" conference, Oxford around 75 people incl Bornemann, Higham, Moler, Greengard, Huybrechs, Boyd, Fischer, Shen, Driscoll, Hale. "Chebfun and beyond" Fri 05 Oct 2012, Berrut 60th bday conf, Fribourg, Switzerland chair Georges Klein, around 50 people "Happy 187th birthday to the barycentric interpolation formula!" Wed 05 Dec 2012, Temple U. chair Daniel Szyld "Four bugs on a rectangle" Thu 06 Dec 2012, Math, U of Delaware, Delaware chair Toby Driscoll "Gaussian elimination as an iterative algorithm" Mon 10 Dec 2012, CS/Maths colloq, NYU, New York "Gaussian elimination as an iterative algorithm" ---- 2011 ---- Fri 07 Jan 2011, SIaM UKIE Annual meeting, Manchester around 70 people "Robust rational interpolation and least-squares Fri 18 Feb 2011, Christ Church award dinner, Oxford Chair Sam Howison, black tie dinner "Four bugs on a rectangle" Wed 02 Mar 2011, Ar State U, Arizona Chair Rodrigo Platte "Computing with Chebfun" Thu 03 Mar 2011, Ar State U Distinguished Lect Series, Arizona Chair Rodrigo Platte "Robust rational interpolation" Fri 04 Mar 2011, U Arizona, applied math & engr students, Arizona "Numerical computing with Chebfun" Fri 04 Mar 2011, U Arizona, Math colloquium, Arizona Chair Tabor, around 25 people incl Brio, Restrepo "Robust rational interpolation" Tue 08 Mar 2011, Ziwet Lecture, U Michigan "Approximation by rational functions" Wed 09 Mar 2011, Ziwet Lecture, U Michigan "Impossibility of fast stable approximation of analytic functions from equispaced samples" Thu 10 Mar 2011, Ziwet Lecture, U Michigan "Four bugs on a rectangle" Thu 10 Mar 2011, Engineering, U Michigan "Computing with Chebfun" Fri 23 Mar 2011, SANUM Conference, Stellenbosch, South Africa Chebfun session Fri 23 Mar 2011, SANUM Conference, Stellenbosch, South Africa "Six myths of polynomial interpolation and quadrature" Wed 13 Apr 2011, U Coimbra, Portugal chair Ercilia Sousa "Chebfun: A new kind of numerical computing" Thu 15 Apr 2011, Tech U Lisbon, Portugal Chair Pedro Antunes "Eigenmodes of drums and Physics Nobel Prizes" Fri 06 May 2011, Courant Inst 7th anniv. Mtg., New York chair Leslie Greengard "Robust rational interpolation, Pade approximation, and extrapolation of sequences" 12-17 Jun 2011, Dobbiacco, Italy chair Hosterman and Bellen, 5 day sof lectures with Driscoll around 40 participants "Approximation Theory, Spectral Methods and Chebfun" Tue 28 Jun 2011, Strathclyde NA conf, Scotland invited talk "Six myths of polynomial interpolation and quadrature" Tue 28 Jun 2011, Strathclyde NA conf, Scotland talk in Chebfun minisymposium "Convergence theorems for polynomial interpolation in Chebyshev points" Fri 29 Jun 2011, IMA Summer Lecture (gold medal), London Royal Society, around 100 people "Six myths of polynomial interpolation" Tue 05 Jul 2011, Cambridge Engr Dept. chair Matt Juniper; talk with Nick Hale "Introduction to Chebfun computing" Tue 19 Jul 2011, book launch party, ICIAM Vancouver, Canada chair David Keyes. Around 100 people, an amazingly dinstinguished list. Readings from _Trefethen's Index Cards_ Wed 20 Jul 2011, ICIAM Vancouver, Canada "Bernstein ellipses and beyond" xxx xx Jul 2011, Chebfun minisymposium, ICIAM Vancouver, Canada "Introduction to Chebfun" Wed 12 Oct 2011, SC2011, Sardinia, Italy 30 min, around 80 peop;e incl Cuyt, Brezinski, Gutknecht, Reichel, Van Barel, Beckermann "Robust Pade approximation via SVD" Thu 13 Oct 2011, SC2011, Sardinia, Italy demonstration talk "Chebfun" Thu 20 Oct 2011, Oxford Maths Inst prize event chair Sam Howison, around 50 people "Four bugs on a rectangle" Tue 01 Nov 2011, Feng Kang Lecture, Chinese Acad Sci, Beijing, China chair Ya-xiang Yuan, about 90 people "Chebfun: A new kind of numerical computing" Thu 03 Nov 2011, Chinese Acad Sci, Beijing, China About 25 people incl Ya-xiang Yuan, Qiang Du "Robust Pade approximation via SVD" Thu 03 Nov 2011, Tsinghua U, Beijing, China About 30 people "Robust Pade approximation via SVD" Wed 09 Nov 2011, ICNONLA 2011 (numer opt & nla), Xiamen, China Host Ya-xiang Yuan, chair Tim Kelley, around 100 people "Robust Pade approximation via SVD" Fri 11 Nov 2011, Nanqiang Lect, Xiamen U, Xiamen, China Chair Jie Shen, around 80 people. Money, plaque, flowers, poster.... "Chebfun: A new kind of numerical computing" Tue 15 Nov 2011, Oxford NA Group internal seminar, 25 min around 25 people "Robust Pade approximation via SVD" Tue 22 Nov 2011, UCL, London "Robust rational approximation" Wed 07 Dec 2011, math dept, Tufts U, Massachusetts around 25 people "Robust rational interpolation and Pade approximation" Thu 08 Dec 2011, Harvard Inst. Appl Comp Sci, Massachusetts chair Rosaline Reid, around 25 people incl Land, Anderson, Knezevic "Solving differential equations with Chebfun" Thu 08 Dec 2011, MIT, math & engr colloq., Massachusetts chair Qiqi Wang, around 100 people "Computing with Chebfun" NYU 75th anniversary meeting, New York "Robust rational interpolation, Pade approxinmation, and extrapolation of sequences" ---- 2010 ---- 16-20 Jan 2010, KAUST, Saudi Arabia Chebfun short course joint with Nick Hale Tue 19 Jan 2010, KAUST talk (subject?) Tue 26 Jan 2010, TU Berlin, Germany "Speeding up numerical computations via conformal maps" Wed 27 Jan 2010, U Dresden, Germany chair Axel Voigt Thu 28 Jan 2010, U Chemnitz Math Colloq., Germany chair Peter Benner Thu 11 Feb 2010, student seminar, TU Berlin, Germany "Who invented the great numerical algorithms?" Tue 16 Feb 2010, MATHEON colloqium, Berlin, Germany chair probably Mehrmann, around 80 people "Impossibility of fast stable approximation of analytic functions from equispaced data" Tue 30 Mar 2010, Academy of Sciences, Prague, Czech Republic chair Zdenek Strakos chebfun talk Wed 31 Mar 2010, Academy of Sciences, Prague, Czech Republic Chair Pavel Exner, around 15 people "Eigenmodes of drums and physics Nobel Prizes" Fri 09 Apr 2010, Tufts U math colloq., Massachusetts around 20 people "Four bugs on a rectangle" (?) Tue 13 Apr 2010, Boeing Corp, Seattle, Washington 10am, around 50 people "Solving differential equations with Chebfun" Tue 13 Apr 2010, Math Across Campus lecture, U Washington big crowd "Four bugs on a rectangle" Wed 14 Apr 2010, Milliman Lecture, U Washington around 50 people "Approximation theory in one hour" Wed 15 Apr 2010, Milliman Lecture, U Washington "You can't beat Gibbs and Runge" Tue 27 Apr 2010, U Goettingen, Germany chair Schaback, around 20 people "You can't beat Gibbs and Runge" Mon 03 May 2010, Free U Berlin, Germany chair Peter Deuflhard (his birthday?), around 25 people "Chebfun" Tue 04 May 2010, TU Munich, Germany "Chebfun" Tue 18 May 2010, U Heidelberg, Germany for grad students, two hours "A primer for Chebfun" Tue 18 May 2010, Courant Lecture, U Heidelberg, Germany "Chebfun" Tue 01 Jun 2010, U Innsbruck, Austria Chair A. Ostermann "Chebfun" Fri 18 Jun 2010, TU Munich, FestVortrag for graduation, Germany Chair Bornemann, around 100 people, would have been more except for simultaneous Germany World Cub math. I begin in German. "Four bugs on a rectangle" Thu 01 Jul 2010, IWASEP 8 (eig problems), Berlin, Germany "The EIGS command in Chebfun" Wed 14 Jul 2010, SIAM Annual Meeting, Pittsburgh, Pennsylvania "You can't beat Gibbs and Runge" Thu 05 Aug 2010, Acad. Sci, Numer. Anal., Moscow, Russia around 12 in this horrible week of snow and heat incl Suetin, Aptekarev, Bogatyrev, not Gonchar "Chebfun and approximation theory" Thu 19 Aug 2010, Kaunas Univ. of Tech., Lithuania Chair Minvydas Ragulskis "Chebfun" Fri 17 Sep 2010, Heilbronn Conf, U Bristol around 100 people "Chebfun" Fri 12 Nov 2010, Chebfun event at St. John's, Oxford around 60 people, mostly Oxford grad students "Chebfun" Wed 24 Nov 2010, York U ? Fri 10 Dec 2010, NYU, NA seminar, New York "Six myths of interpolation and quadrature" Mon 13 Dec 2010, MIT applied math, Massachusetts "Impossibility of approximation of analytic functions from equispaced data" ---- 2009 ---- Wed 28 Jan 2009, consilium talk at Balliol, Oxford Chair probably Penny Bulloch, around 20 people "Ten digits" Tue 03 Mar 2009, Praefectus seminar at Balliol, Oxford chair Diego Zancani, around 25 people "Chebfuns: a new kind of numerical computing" Fri 06 Mar 2009, Durham U Maths. seminar around 20 people "Approximation theory and approximation practice" Mon 16 Mar 2009, U Cambridge, nonnormal eigenvalue conference around 50 people "Pseudospectra and Eigtool" Tue 19 May 2009, UBC applied math, Vancouver, Canada Informal talk with about 20 students "Chebfun and Chebop" Tue 19 May 2009, UBC applied math, Canada Overfull room; about 40 get in incl Varah, Greif,... "who invented the great numerical algorithms?" Wed 20 May 2009, Simon Fraser U applied math, Canada around 30 people incl Trummer, P Borwein, Russell, Nigam, Tupper "Approximation theory and approximation practice" Thu 21 May 2009, Boeing Colloqium at U W applied math, Washington Chair Randy leVeque, good crowd in big room "Chebfuns: a new kind of numerical computing" Fri 22 May 209, classroom at U Washington, Washington chair Bob O'Malley "Solving PDEs on the computer screen" Thu 25 Jun 2009, Strathclyde NA mtg, Chebfun minisymp, Scotland around 50 people "Solving differential equations with chebops" Wed 15 Jul 2009, John Reid 70th birthday meeting, Abingdon around 50 people "Spectral accuracy and conformal maps" Sat 12 Sep 2009, Gutknecht retirement conf, ETH Zurich, Switzerland around 50 people "Caratheodory-Fejer approximation 30 years later" Sat 12 Sep 2009, Gutknecht retirement conf, ETH Zurich, Switzerland around 120 people afterdinner speech for Gutknecht, based on our letters from early 80s Tue 22 Sep 2009, Britton Lecture #1 at McMaster U, Canada around 60 people "Polynomial interpolation in a million points" Wed 23 Sep 2009, Britton Lecture #2 at McMaster U, Canada around 60 people "Eigenmoides of drums and physics Nobel Prizes" Thu 24 Sep 2009, Britton Lecture #3 at McMaster U, Canada around 60 people "Nonnormal dynamics and pseudospectra" Fri 25 Sep 2009, Britton Lecture #4 at McMaster U, Canada around 60 people "Who invented the great numerical algorithms?" Fri 02 Oct 2009, Oxford Computing Lab 30 min lighthearted presentation as we leave the Comlab, around 80 people "Goodbye to the NA Group" Thu 15 Oct 2009, Oxford Mathematical Institute 45-min presentation to External Advisory Panel showcasing NA Group as new arrivals, around 25 people "Numerical Analysis Group" Fri 23 Oct 2009, Maths Colloq, King's College London around 20 people "Four bugs on a rectangle" Wed 09 Dec 2009, Brian Davies 65th birthday conference, KCL, London "Impossibility of approximating analytic functions from equispaced samples" Fri 11 Dec 2009, NYU Numer anal Colloq, New York "Impossibility of approximating analytic functions from equispaced data" ---- 2008 ---- Thu 13 Mar 2008, Sem. in Appl. & Comp. Analysis, DAMTP, U Cambridge "Automatic edge detection in the chebfun system" Mon 14 Apr 2008, Ill Inst Tech Math club lunch, Illinois "Eigenmodes of rums (and Physics Nobel Prizes)" Mon 14 Apr 2008, Menger Lecture, Ill Inst Tech, Illinois "Computing numerically with functions instead of numbers" Tue 15 Apr 2008, appl math dept, Ill Inst Tech, Illinois "How to be a successful applied mathematician" Wed 16 Apr 2008, EECS Dist Lec, Comp. Sci., Northwestern U, Illinois "Computing numerically with functions instead of numbers" Fri 18 Apr 2008, LAA Lecture, U Wisconsin, Madison, Wisconsin "Computing numerically with functions instead of numbers" Fri 18 Apr 2008, grad student talk, math, U Wisconsin, Madison, Wisconsin "Nonnormal matrices/operators and EigTool" Thu 01 May 2008, Internal NA Group seminar, Oxford around 30 people "Eigenvalue avoidance" Thu 15 May 2008, f(A) wkshp, U of Manchester chair probably Nick Higham, around 30 people "Matrix functions, rational approximation, and quadrature formulas" Mon 02 Jun 2008, plenary lect, Householder Symp, Zeuthen, Germany around 100 people "Continuous analogues of QR, SVD and LU" Wed 11 Jun 2008, U Manchester Maths dept-wise colloq, Manchester around 40 people "Chebfuns: a new kind of numerical computing" Mon 30 Jun 2008, opening plenary lect, 15th ECMI Conf, London around 150 people "Chebfuns: a new kind of numerical computing" Tue 08 Jul 2008, SIAM Annual Meeting, San Diego, California "Introduction to chebfuns and the theorems they are based on" Thu 10 Jul 2008, SIAM Ann Mtg, San Diego, California A contributed speaker doesn't show up in a relevant session, so I give this talk in his place. "Beating Gauss quadrature" Wed 10 Sep 2008, Culham Lab Colloq 40-50 people "Chebfun: A new kind of numerical computing" 7-11 Jul 2008, Crowdy/de Lillo minisymp, SIAM Ann Mtg, San Diego, California "Computing with analytic and harmonic functions on the unit disk" Thu 11 Sept 2008, after-school talk, 6th form, Magd Coll Sch, Oxford chair Paul Shrimpton, around 30 people "Computational mathematics" Wed 10 Aug 2008, MAGIC launch event with 20 universities, norther UK probably around 300 people connected "Polynomial interpolation in a million points" Tue 14 Oct 2008, NA Group internal seminar, Oxford 15-20 people, informal discussion "Jim Wilkinson and interval arithmetic" Mon 17 Nov 2008, SIAM student chapter, Oxford around 30 people "Exploring PDEs on the computer screen" Fri 28 Nov 2008, Nonlinear Dynamics meeting, U of Bristol chair Daniele Avitabile, around 25 people incl Krauskopf, Osinga, Kerswell "chebfun + chebop" Tue 02 Dec 2008, Math colloq, U Leeds chair Rob Sturman, around 40 people incl Kelmanson, Skeldon, Rucklidge "Chebfuns: a new kind of numerical computing" Thu 04 Dec 2008, First Comlab Reserach Forum, Som. Coll, Oxford chair Pulman, 30 min talk, around 25 incl Melham, Kroening, Ouaknine "The chebfun system: numerical vs symbolic computing" Fri 12 Dec 2008, NA sem, NYU, New York around 30 people "Chebfun and Chebop" Mon 15 Dec 2008, applied math, MIT around 30 people "Chebfun and Chebop" ---- 2007 ---- Thu 15 Mar 2007, U of Southampton "Speeding up numerical computations via conformal maps" Sat 31 Mar 2007, Stanford 50 meeting = Golub 75th, Stanford, California "Beating Gauss quadrature" Mon 07 May 2007, applied math, Harvard U, Massachusetts "Speeding up numerical computations via conformal maps" Wed 23 May 2007, Gene Golub Day, U Leicester "Computing functions of matrices via quadrature and conformal maps" Thu 31 May 2007, U of Sussex "Speeding up numerical computations via conformal maps" Tue 19 Jun 2007, 2-day event for Boettcher, U Reading around 20 people "Exploring spectra and pseudospectra of banded Toeplitz and twisted toeplitz matrices in Eigtool" Tue 26 Jun 2007, Dundee meeting on NA, Scotland "Computing matrix functions via quadrature and conformal maps" Thu 28 Jun 2007, Dundee meeting on NA (the last one!), Scotland After-dinner speech. Wed 25 Jul 2007, SNC07 = symb-num comp 2007, UWO, London, Ontario "Computing numerically with functions instead of numbers" Fri 14 Sep 2007, U of Birmingham, inv talk at NLA & Opt meeting "Global optimization in the chebfun system" Wed 31 Oct 2007, inv talk at Red Raider Symp., Texas Tech, Lubbock, Texas "Speeding up numerical computations via conformal maps" Fri 02 Nov 2007, Red Raider Symp. (Barnard 65th), TTU, Lubbock, Texas "Eigenmodes of drums and Physics Nobel Prizes" Mon 05 Nov 2007, special CAAM seminar, Rice U, Texas "Eigenmodes of drums and Physics Nobel Prizes" ---- 2006 ---- Tue 17 Jan 2006, Ecole Polytechnique, Paris, France "Nonhermitian systems and pseudospectra: basic ideas and four applications" Tue 26 Jan 2006, U Glasgow, Applied Mathematics, Scotland "Computed eigenmodes of planar regions" Thu 22 Jun 2006, U Keele hydrodynamics Wed 26 Jul 2006, ALA06 = Appl Lin Alg 2001, Dusseldorf, Germany "Talbot quadratures and rational approximations" Tue 07 Nov 2006, Oxford U "Vibrations of planar drums" Thu 09 Nov 2006, Cakes talk, Oxford U. Computing Lab, Oxford Wed 22 Nov 2006, Oxford U. "Computing functions of matrices via quadrature and conformal maps" Fri 08 Dec 2006, NA seminar, NYU, New York "Speeding up numerical computations via conformal maps" Mon 11 Dec 2006, Applied Math seminar, MIT, Massachusetts "Speeding up numerical computations via conformal maps" ---- 2005 ---- Thu 20 Jan 2005, Oxford Numerical Analysis Seminar "Who invented the great algorithms?" Fri 04 Feb 2005, Oxford Theoretical Physics seminar "Nonhermitian systems and pseudospectra" Tue 15 Feb 2005, Imperial College, London "Eigenmodes of polygonal drums" Fri 25 Feb 2005, U Loughborough "Eigenmodes of polygonal drums" Tue 29 Mar 2005, Conf Diffl Eqs Math Phys, U AL, Birmingham, Alabama Invited Lecture "Computed eigenmodes of planar regions" Tue 26 Apr 2005, Heriot-Watt Analysis Seminar, "Eigenmodes of planar regions" Thu 05 May 2005, U Maryland "Who invented the great algorithms?" Fri 27 May 2005, Plenary lecture, Householder Symposium "Spectra and pseudospectra" Wed 15 Jun 2005, Invited lecture, Comp. Methods & Function Theory Conf., Joensuu, Finland "The trapezoid rule: old history, new applications" Tue 28 Jun 2005, Mitchell Lecture, Dundee, Scotland "Ten digit algorithms" Thu 14 Jul 2005, Royal Society New Fellows' Seminar "Eigenvalues and numerical computation" 11-16 Sep, U Manchester Four lectures on spectral methods for ODE and PDE Wed 21 Sep 2005, Leiden, Netherlands After-dinner talk in honour of Henk Van der Vorst Thu 06 Oct 2005, Oxford Numerical Analysis Seminar "Spectra and pseudospectra" Tue 25 Oct 2005, Tufts U Wiener Lecture, Massachusetts "Confessions of a number cruncher" Thu 27 Oct 2005, Tufts U Mathematics seminar, Massachusetts "The trapezoid rule, rational approximation, and functions of matrices" Thu 27 Oct 2005, Tufts U Mech. Engr. Colloquium, Massachusetts "Computed eigenmodes of planar regions" Fri 28 Oct 2005, Tufts U Wiener Lecture, Massachusetts "Polynomial interpolation and the chebfun system in Matlab" Fri 04 Nov 2005, Reading U Applied Maths. seminar "Computed eigenmodes of planar regions" Fri 11 Nov 2005, NAG AGM/29, Oxford "Who invented the great numerical algorithms?" Tue 15 Nov 2005, Oxford U Functional Analysis Seminar "Nonhermitian systems and pseudospectra: basic ideas and four applications" Fri 02 Dec 2005, Cambridge U Fluid Mechanics Seminar "Nonhermitian systems and pseudospectra: basic ideas and four applications" Mon 05 Dec 2005, U Kent "Polynomial interpolation and the chebfun system in Matlab" ---- 2004 ---- xx xxx 2004 NYU, New York "Eigenmodes of polygonal drums" Tue 18 May 2004, U Queensland, Australia "Scientific computing, past present and future" Fri 21 May 2004, Centre for Complex Systems, U Melbourne, Australia "Scientific computing, past present and future" Tue 25 May 2004, G. S. Watson Annual Lecture, La Trobe U Bendigo, Australia "Polynomial interpolation is much better than you think" Thu 27 May 2004, Maths. Dept., U Adelaide, Australia "Transition to turbulence in pipes and channels" Fri 04 Jun 2004, ACMC, U Queensland, Australia "Ten-digit algorithms" Mon 12 Jul 2004, SIAM Annual Meeting, Portland, Oregon "Four fundamental classes of nonnormal operators" Mon 12 Jul 2004, SIAM Annual Meeting, Portland, Oregon "An extension of Matlab to continuous functions and operators" Thu 15 Jul 2004, SIAM Annual Meeting, Portland, Oregon member of panel: evening session on writing Thu 09 Sep 2004, Scottish Comp. Maths. Symp. (David Sloan retirement celebration), invited talk "Interpolation in Chebyshev Points" Wed 15 Sep 2004, Wkshop Diffl Eqs and Applics, Istanbul Tech U, Turkey "Spectra, pseudospectra, and nonnormal dynamics" Thu 16 Sep 2004, Workshop on Differential Equations and its Applications, Istanbul Technical U, Turkey "Four fundamental classes of nonnormal operators" Fri Fri 01 Oct 2004, BATH/RAL Numerical Analysis Day "The numerical range and what it's good for" Tue Tue 26 Oct 2004, NA Group internal seminar "What I do" Thu 25 Nov 2004, Advances in Dynamical Simulation meeting, U Leicester "Who invented the great numerical algorithms?" Tue 14 Dec 2004, BLADE Conf. in Bristol "Estimates of transient behaviour from pseudospectra" ______________________________________________________________________ ---- 2003 ---- Thu 06 Feb 2003, Nonlinear Analysis Seminar, Oxford "Eigenmodes of polygonal drums" Fri 14 Feb 2003, Applied Nonlinear Mathematics, U Bristol "Eigenvalues of polygonal drums" Wed 05 Mar 2003, U Strathclyde "Eigenvalues of polygonal drums" Fri 14 Mar 2003, Simon Fraser U, Canada "Eigenvalues of polygonal drums" Mon 17 Mar 2003, Applied Mathematics Seminar, U British Columbia , Canada "Fast accurate solution of stiff PDE" Wed 19 Mar 2003, Applied Math. Colloq., Caltech, California "Fast accurate solution of stiff PDE" Mon 24 Mar 2003, Rice U, Texas "Eigenmodes of polygonal drums" Thu 03 Apr 2003, SCI institute, U Utah "An online tour of spectral methods" Thu 17 Apr 2003, Rees Lecture, Dept. of Math., U Delaware "Confessions of a number cruncher" Fri 18 Apr 2003, Rees Lecture, Dept. of Math., U Delaware "Eigenmodes of polygonal drums" Fri 02 May 2003, Ludwig-Maximillian-U, Munich, Germany "Eigenmodes of polygonal drums" Mon 05 May 2003, Technische-Uni. Munich "Eigenvalues, pseudospectra, and dynamics" Wed 28 May 2003, Maths., Phys. & Meteorology School Colloquium, U Reading "Confessions of a number cruncher" Tue 08 Jul 2003, ICIAM, Sydney "Lower bounds for transients based on pseudospectra" Wed 09 Jul 2003, ICIAM, Sydney "Global spectral methods on irregular domains" Tue 15 Jul 2003, Ian Sloan celebratory meeting, Sydney "The CHEBFUN Extension of Matlab to continuous functions and operators" Wed 30 Jul 2003, Australian National U, Canberra, Australia "Eigenmodes of polygonal drums" Thu 21 Aug 2003, James Cook U, Townsville, Australia "Applied mathematics, numerical analysis, and ten-digit algorithms" Sun 07 Sep 2003, annual QANZIAM meeting, Queensland, Australia "Spectra, pseudospectra, and nonnormal dynamics" Tue 26 Sep 2003, Queensland U Technology, Australia "Applied maths, numerical analysis, and ten digit algorithms" Thu 23 Oct 2003, Maths. Dept., U Southern Queensland, Toowoomba, Australia "Transition to turbulence in pipes and channels" Fri 29 Oct 2003, Applied Maths. Sem., U Sydney, Australia "Transition to turbulence in pipes and channels" Fri 07 Nov 2003, La Trobe U, Melbourne, Australia "Fast accurate solution of stiff PDE" Mon 01 Dec 2003, National U Singapore "Scientific computing, past present and future" Tue 02 Dec 2003, National U Singapore "Applied Maths, numerical analysis, and ten-digit algorithms" Wed 10 Dec 2003, Maths. Dept., National U Singapore "Barycentric interpolation and the 'chebfun' extensoin of Matlab to continuous functions and operators" Tue 16 Dec 2003, National U Singapore "Fast fourth-order time-stepping for stiff PDEs" ---- 2002 ---- 24 Jan 2002, NA Seminar, Oxford "Numerical Schwarz-Christoffel Mapping" 05 Feb 2002, Atmos Physics Seminar, Oxford "Transition in a circular pipe" 19 Feb 2002, Latsis Symposium on Iterative Solvers for Large Linear systems (commemorating 50 years of CG and Golub birthday): after-dinner speech 06 Mar 2002, Dept. of Physics, U Liverpool "Non-hermitian operators and pseudospectra" 17 Mar 2002, Dept. of Physics, U Manchester "Transition in a circular pipe" 26 Mar 2002, Copper Mountain Conference on Iterative Methods, Colorado "New examples of pseudospectra of differential operators" 03 Apr 2002, special Schlumberger meeting "Confessions of a number cruncher" 11 Apr 2002, plenary invited speaker, Joint British Mathematical and Applied Mathematical Colloquium, U Warwick "Wave packet pseudomodes of matrices and differential operators" xx May 2002, Householder Symposium, Peebles, Scotland "Twisted Toeplitz matrices" 10 Jul 2002, SIAM 50th Anniversary Annual Meeting (invited talk) "Spectra and pseudospectra" 10 Jul 2002, SIAM 50th Anniversary Annual Meeting "Numerical solution of the omitted area problem of univalent function theory" 24 Jul 2002, Gregynog Meeting on Spectral Theory "Wave packet pseudomodes of twisted Toeplitz matrices" 24 Oct 2002, Dept. of Maths., King's College London "Localized eigenvectors and pseudo-eigenvectors of matrices with variable or random coefficients" 13 Nov 2002, "Chebyshev and Approximation" mtg., U Huddersfield "An object-oriented MATLAB system built on Chebyshev interpolation" ---- 2001 ---- 30 Jan 2001, Royal Institution, London "Mathematics on Computers" 07 Mar 2001, Aeronautical Engr., Imperial college "An online tour of spectral methods" 13 Mar 2001, Max-Planck-Institut Leipzig, Germany "An online tour of spectral methods" 28 Mar 2001, ICFD Conference after-dinner speech [theme: bathtub vortex] 14 Jun 2001, ICOSAHOM meeting, Uppsala, Sweden "A Matlab spectral code for flow in a pipe" 16 Jun 2001, Hayman conference at Imperial College "Schwarz-Christoffel mapping" 25 Jun 2001, LAA Lecture, ILAS meeting, Haifa, Israel "Stability of Gaussian elimination" 29 Jun 2001, invited lecture, Dundee meeting, Dundee "Stability of Gaussian elimination" 07 Sep 2001, GAMM meeting, Berlin "Surprising results of Embree on restarted GMRES" 08 Sep 2001, GAMM meeting, Berlin "Stability of Gaussian elimination" 18 Dec 2001, INRIA Rocquencourt, France "Scientific computing: the finite, the infinite, and the future" ---- 2000 ---- 11 Jan 2000, Applied Maths. Colloq., Royal Holloway "Spectra and pseudospectra of nonsymmetric random matrices. 07 Feb 2000, Applied Maths. Colloquium, U College London "Spectra, pseudospectra, and dynamics" 01 Mar 2000, Applied Maths. Colloq., U Nottingham "An online tour of spectral methods" 22 Mar 2000, Maths. Colloq., Royal Military College of Science "An online tour of spectral methods" 24 Apr 2000, Mathematics Colloquium, Courant Institute, NYU, New York "Random nonhermitian matrices" 06 Apr 2000, Copper Mountain Conference on Iterative Methods, Colorado "Generalizing eigenvalue theorems to pseudospectra theorems" 22 May 2000, EPSRC meeting at Royal Institution, London "Spectral methods and laboratory experiments for fluid flow in a pipe" 05 Jun 2000, Applied Maths. Colloquium, U East Anglia "Transition to turbulence in a circular pipe" 30 Jun 2000, Meeting on (Pseudo)spectra of random nonhermitian matrices "Spectra, pseudospectra and localization for random bidiagonal matrices" xx Jul 2000, SIAM Annual Meeting, Puerto Rico "Bidiagonal and Hessenberg reductions of random matrices" xx Jul 2000, SIAM Annual Meeting, Puerto Rico "How many shuffles to randomize a deck of cards?" 27 Sep 2000, Woudschoten, Netherlands "Large-scale computation of pseudospectra" 27 Sep 2000, Woudschoten (special after-dinner speech) "My ten favourite eigenvalues" 15 Nov 2000, MIT-Singapore Alliance, MIT, massachusetts "Large-scale calculation of eigenvalues and pseudospectra" 13 Dec 2000, Dept. of Maths., Keele U "Group velocity and pseudospectra" ---- 1999 ---- Tue 12 Jan 1999, Plasma physics inst nr Utrecht, Netherlands "Eigenvalues, pseudospectra, and dynamics" Tue 12 Jan 1999, seminar, U Utrecht, Netherlands "Spectral methods in one hour" Wed 13 Jan 1999, BRIMS, HP Labs, Bristol, seminar "Growth and decay in random recurrence relations" Thu 14 Jan 1999, Dept. of Maths., U Bristol, seminar "Schwarz-Christoffel mapping in the computer era" Wed 17 Feb 1999, U Sussex, seminar "Computation of pseudospectra" Tue 16 Mar 1999, U Fribourg, Switzerland "Schwarz-Christoffel mapping in the computer era" (with Matlab demo) or more likely "Growth and decay in random recurrence relations" (to be decided) Mon 29 Mar 1999, Invited lecture, SANUM conference, Stellenbosch, South Africa "Eigenvalues, pseudospectra and dynamics" Wed 31 Mar 1999, SANUM conference, Stellenbosch, South Africa "Growth and decay in random recurrence relations" Mon 26 Apr 1999, Inaugural Lecture, Oxford U "Scientific computing: The finite, the infinite, and the future" Wed 05 May 1999, Rouse Ball Lecture, U Cambridge. Tim Gowers and many others present... leads to PCM invitation "Scientific computing: the finite, the infinite, and the future" Thu 13 May 1999 SIAM Annual Meeting, Atlanta, Georgia "Computation of pseudospectra" Wed 30 Jun 1999, Dundee Numerical Analysis Conference TBA - deadline May 22 Wed 07 Jul 1999, ICIAM, Edinburgh "Applications of pseudospectra in physics" xxx xx Jul 1999: Foundations of Computational Mathematics, Oxford "Computing invariant measures and Lyapunov constants for random recurrence relations" xxx xx Jul 1999: Foundations of Computational Mathematics, Oxford "Nonhermitian matrices, localization, and pseudospectra" Aug 23-26, 1999, Conf on Non-Hermiticity and Disorder, ICTP Trieste, Italy "Spectra, pseudospectra, and dynamics", invited lecture Fri 24 Sep 1999, Keynote Speaker, AGM, NAG, Ltd., Oxford "Numerical computation in the next 50 years" Sat 09 Oct 1999, Moler 60th birthday meeting in Boston, Massachusetts after-dinner speech Tue 19 Oct 1999, Conference in honor of Sergei Godunov, Oxford "Another side of Sergei Godunov" Thu 21 Oct 1999, ERCOFTAC SIG 33 subcr transition wkshp, Delft, Netherlands "New results by Chapman on transition in channels" Thu 02 Dec 1999, Applied Mathematics Colloquium, Brown U, Rhode island "An online tour of spectral collocation methods" Sat 04 Dec 1999, Confrence in Honor of Gil Strang, MIT, Massachusetts "Random matrices and eigenvector localization" Thu 09 Dec 1999, Applied Maths. Colloq., U Greenwich "An online tour of spectral methods" ---- 1998 ---- Mon 05 Jan 1998, SIAM UKIE meeting (the first?) in Manchester I fill in as invited speaker when Chris Budd doesn't turn up "Surprising behavior of random Fibonacci sequences" Fri 30 Jan 1998, Numerical Analysis Day at U Bath. "Stability of Gaussian elimination" Tue 03 Feb 1998, Oxford U Invariants Society. chair David Wallace "Computational mathematics in the 21st century: why the algorithms that take forever are faster than the finite ones" Wed 11 Feb 1998, Grossmann meeting in Marburg, invited talk "Non-normality, nonlinearity, and transition to turbulence" Fri 20 Feb 1998, Seminar at U Reading. "The PDE Coffee Table Book" Fri 20 Mar 1998, Seminar at U Durham. "Surprising behavior of the recurrence $x_{n+1} = x_n \pm \beta x_{n-1}$" Wed 25 Mar 1998, Seminar at U Cardiff. "Pseudospectra of non-normal matrices and linear operators" Thu 12 May 1998 and Thu 17 Mar 1998, Theoretical Physics, Oxford. Two talks about non-normal eigenvalue problems. Mon 20 Apr 1998, Seminar at U Southampton. "Eigenvalues and card shuffling -- the 'cutoff phenomenon' in Markov chains" Fri 08 May 1998, Seminar at U Warwick. "Schwarz-Christoffel mapping, Green's functions, and polynomial approximation" Thu 21 May 1998, Statistics Seminar, Oxford U Eigenvalues and card shuffling -- the 'cutoff phenomenon' in Markov chains Fri 22 May, 1998, Two Nonlinear Dynamics seminars at U Surrey. "Eigenvalues: what they do and do not tell us about dynamics" "Non-normality, nonlinearity, and transition to turbulence" Wed 17 Jun 1998, Invited talk at Manchester meeting. "Predictions for the next 50 years" Mon-Fri 07/6-10/98. 5 talks at Leicester summer school: 1. Pseudospectra: definition, history, examples 2. Applications in numerical analysis 3. Applications in fluid mechanics 4. Computation of pseudospectra 5. Where do we go from here? Thu 16 Jul 1998, SIAM Annual Meeting, Toronto, Canada "Surprising behavior of the random recurrence $x_{n+1} = x_n \pm \beta x_{n-1}$" Thu 17 Jul 1998, SIAM Annual Meeting, Toronto, Canada "Should numerical stability be defined by taking O(machine epsilon) literally?" Wed 26 Aug 1998, Invited talk at ICIAM 1999, Berlin, Germany "Schwarz-Christoffel mapping in the computer era" Thu 10 Sep 1998, OCIAM, Oxford. "Spectral methods in one hour" Tue 13 Oct 1998, Oxford U Combinatorial Seminar (Welsh et al.) "Growth and decay in random recurrence relations" Thu 22 Oct 1998, Oxford U Comp. Maths. & Applics. sem. "Schwarz-Christoffel mapping in the computer era" Fri 23 Oct 1998, Edinburgh Math Soc, annual keynote lecture, Scotland "Schwarz-Christoffel mapping in the computer era" Wed 25 Nov 1998, Applied Math Sem, U Sheffield "Schwarz-Christoffel mapping in the computer era" ---- 1997 ---- Mon 06 Jan 1997, FoCM, IMPA, Rio de Janeiro (invited), Brazil "Should numerical stability be defined by interpreting O(machine epsilon) literally?" Wed 08 Jan 1997, FoCM, IMPA, Rio de Janeiro, Brazil "Random triangular matrices and random Fibonacci sequences" Fri 05 Apr 1997, Numerical analysis colloquium, Courant Institute, NYU "Random triangular matrices and random Fibonacci sequences" Mon xx Jun 1997, Dundee meeting, Scotland "Eigenvalues and card shuffling -- the 'cutoff phenomenon' in Markov chains" Mon 14 Jul 1996, AWM symposium, SIAM Ann Mtg, Stanford U, California "How I write" Mon 14 Jul 1997, SIAM Annual Meeting, Stanford U, California "Non-normality and card shuffling -- the 'cutoff phenomenon' in Markov chains" Mon 22 Sep 1997, Scottish Comp Math Symposium invited talk "Random Fibonacci sequences and the number 1.13198824..." Fri 05 Oct 1997, Lecture 8 at Oxford "Scientific computing in the 21st century" Fri 17 Oct 1997, Lecture 1 at Oxford "Random Fibonacci sequences and the number 1.13198824..." Fri 10/24/97 Lecture 2 at Oxford "Pseudospectra of non-normal matrices and operators" Fri 10/31/97 Lecture 3 at Oxford "Eigenvalues and card shuffling -- the 'cutoff phenomenon' in Markov chains" Fri 11/7/97 Lecture 4 at Oxford "Non-normality, nonlinearity, and transition to turbulence" Fri 11/14/97 Lecture 5 at Oxford "Stability of Gaussian elimination" Thu 20 Nov 1997, KCLondon, Modern Analysis seminar, London chair Brian Davies "Pseudospectra of non-normal matrices and linear operators" Fri 21 Nov 1997, Lecture 6 at Oxford "MultiMATLAB: MATLAB on multiple processors" Mon 24 Nov 1997, Alan Tayler Lecture at Oxford "Eigenvalues: what they do and don't tell us about dynamics" Wed 26 Nov 1997, Brunel U, seminar "Eigenvalues: what they do and don't tell us about dynamics" Fri 28 Nov 1997, Lecture 7 at Oxford "From potential theory to matrix iterations" Thu 04 Dec 1997, DAMTP seminar, Cambridge "Potential theory, polynomial approximation, and matrix iterations" Tue 16 Dec 1997, seminar, KTH Stockholm, Sweden "Non-normality, nonlinearity, and transition" ---- 1996 ---- Tue 2/6/96 Duke U Undergraduate Math Union, North Carolina "Computational mathematics in the 1990s: why the algorithms that take forever are often faster than the finite ones" Tue 2/6/96 Center for Nonlinear and Complex Systems Colloquium, Duke U "When non-normality meets nonlinearity" Fri 2/9/96 Brown Bag Seminar, CS Dept., Cornell "Computational mathematics in the new century" Mon 3/11/96 Applied Mathematics Colloquium, U Strathclyde, Glasgow "Non-normality, nonlinearity, and transition to turbulence" Tue 3/12/96 Applied Mathematics Colloquium, U Dundee, Dundee "Non-normality, nonlinearity, and transition to turbulence" Wed 3/13/96 Applied and Engineering Mathematics Seminar, U Newcastle, England "Non-normality, nonlinearity, and transition to turbulence" Thu 3/14/96 Applied Mathematics Colloquium, Oxford U "Non-normality, nonlinearity, and transition to turbulence" Fri 3/15/96 Fluid Mechanics Colloquium, DAMTP, U Cambridge "Non-normality, nonlinearity, and transition to turbulence" Mon 3/18/96 Applied Mathematics Seminar, U Leeds "Non-normality, nonlinearity, and transition to turbulence" Tue 3/19/96 Joint Applied and Numerical Mathematics Colloquium, U Manchester "Non-normality, nonlinearity, and transition to turbulence" Wed 3/20/96 Applied Mathematics Colloquium, Imperial College, London "Non-normality, nonlinearity, and transition to turbulence" Thu 3/21/96 "Approximation Day" Conference, DAMTP, U Cambridge "The Chebyshev polynomial of a matrix" Fri 22 Mar 1996, Applied Mathematics Colloquium, U Bath "Non-normality, nonlinearity, and transition to turbulence" Fri 05 Apr 1996, Applied Mathematics Colloquium, Cornell U, New York "Computational mathematics in the 1990s and beyond" Fri 31 May 1996, joint inv lect, Canadian Applied Math Society, Winnipeg "Non-normality, nonlinearity, and transition to turbulence" Thu 27 Jun 1996, Applied Mathematics Colloquium, Rice U "Matrix iterations: the six gaps between potential theory and convergence rates" xxx xx Jul 1996, SIAM meeting, Kansas City, Missouri "The Chebyshev polynomial of a matrix" xxx xx Jul 1996, minisymposium at SIAM meeting, Kansas City, Missouri "Non-normality, nonlinearity, and transition to turbulence" (?) Fri 06 Sep 1996, Brown Bag talk, Cornell U, New York "MultiMATLAB: MATLAB on multiple processors" Tue 01 Oct 1996, Bill Sears Lecture, Cornell U "Potential theory, polynomial approximation, and matrix iterations" Fri 15 Nov 1996, Argonne National Lab, Illinois "The condition number of a random triangular matrix" Fri 15 Nov 1996, invited session lecture at AIChE Annual Meeting, Chicago "Non-normality, nonlinearity, and transition to turbulence" ---- 1995 ---- Sat 18 Mar 1995,Wkshop Krylov Methods, North Carolina State U (invited) "Spectra, pseudospectra, and evolution problems" and "Approximating pseudospectra by the Arnoldi iteration" Fri 07 Apr 1995, 39th Meeting, Soc. Nat. Phil., Blacksburg, Virginia (invited) (also Mathematics Colloq., Virginia Poly. Inst. and State U) "Linear-nonlinear interactions in transition to turbulence" Fri 21 Apr 1995, Math Colloq, New Jersey Inst. of Technology, New Jersey "Computing eigenmodes of isospectral drums" Fri 28 Apr 1995, Brown Bag Seminar, CS Dept., Cornell U, New York "What NA is and isn't" Wed 24 May 1995, SIAM Conf. Applics Dynamical Systems, Snowbird, Utah "Spectra and pseudospectra for pipe and channel flows" xxx xx Jun 1995, 16th Biennial Conf on NA, Dundee, Scotland "Approximating pseudospectra by the Arnoldi iteration" Mon 03 Jul 1995, 3rd ICIAM, Hamburg, Germany (invited) "Why Gaussian elimination works even though it is unstable" Tue 11 Jul 1995, IMA Conf Lin Alg and its Applics, Manchester, UK after-dinner speech at conference banquet Wed 12 Jul 1995, IMA Conf. on Linear Algebra and its Applications, Manchester, UK "Random triangular matrices" Tue 17 Oct 1995, "Eigenvalues and Beyond" wkshp, CERFACS, Toulouse, France "When non-normality meets nonlinearity" xxx xx Nov 1995, Bill Sears Club, Cornell U, New York "When non-normality meets nonlinearity" Fri 03 Nov 1995, American Math. Soc., Kent, Ohio "Random triangular matrices" ---- 1994 ---- Fri 19 Feb 1994, Appl Math Colloq., Florida State U, Florida "What eigenvalues don't tell you" Fri 29 Apr 1994, Brown Bag Seminar, Comp Sci, Cornell U, New York "How a numerical analyst and Matlab hacker accidentally found himself doing fluid mechanics, and the effect this had on his marriage" Fri 03 Jun 1994, Applied Math Student Seminar, ETH Zurich, Switzerland "Non-normal matrices and operators: review of research at Cornell" Thu 16 Jun 1994, Mathematics Colloq., Bergakademie Frieberg, Germany "Powers and exponentials of matrices and operators" Fri 17 Jun 1994, Mathematics Colloq., U Chemnitz, Germany "What eigenvalues don't tell you" Thu 23 Jun 1994, Numerical Analysis Seminar, U Tuebingen, Germany "Powers and exponentials of matrices and operators" Thu 30 Jun 1994, Mathematics Colloq., U Hamburg, Germany "What do matrix eigenvalue iterations really learn about a non-normal matrix?" Fri 01 Jul 1994, Dynamical Systems Colloquium, U Bremen, Germany "What eigenvalues don't tell you" Mon 04 Jul 1994, CWI Amsterdam, Netherlands "What eigenvalues don't tell you" Thu 7/7/94, Max-Planck Institute for Plasma Physics, Garching, Germany "Hydrodynamic stability without eigenvalues" Wed 7/13/94, Swiss Federal Institute of Technology, Lausanne, Switzerland "Hydrodynamic instability without eigenvalues" Fri 7/22/94, Applied Math. Student Seminar, ETH Zurich, Switzerland "Instability of fluid flow in a pipe: large-scale computations of spectra and pseudospectra" Fri 7/29/94, SIAM Annual Meeting, San Diego (invited), California "Evolution processes: linear and nonlinear, normal and non-normal, stable and unstable" Mon 10/3/94 Conf. Applics Operator Theory, Winnipeg, Canada "Non-normal operators in applied mathematics" 10/94 Theoretical & Applied Mechanics Colloq., Cornell U, New York "Linear, non-modal dynamics and transition to turbulence" 10/94 Applied Math. Colloq, Cornell U, New York "Why Gaussian elimination works even though it is unstable" 11/4/94 Seaway Sect Mtg, Math. Assoc. of America (invited), New York "Why Gaussian elimination works even though it is unstable" Wed 11/16/94 Computation and Complexity Seminar, IBM TJ Watson, New York "Why Gaussian elimination is almost always stable" Tue 11/29/94 2nd Annual Upstate Numer Anal Day, Cornell U, New York "Large growth factors in Gaussian elimination" ---- 1993 ---- Fri 2/15/93 Plasma Physics Brown Bag Seminar, Cornell U, New York "Why you can't always trust eigenvalues" Fri 3/19/93 Numerical Analysis Colloquium, U Toronto, Canada "Pseudozeros of polynomials and pseudospectra of companion matrices" Mon 4/5/93 Applied Mathematical Colloquium, RPU, New York "Beyond eigenvalues: the mathematics and physics of non-normality" Wed 6/16/93 Householder 93 Symp Numer Lin Alg, Los Angeles, California "Pseudozeros of polynomials and pseudospectra of companion matrices" Wed 07/14/93 SIAM Annual Meeting, Philadelphia, Pennsylvania "Historical introduction" to minisymposium on "Linear, non-modal fluid mechanics" Tue 09/14/93 Bill Sears Club, Ctr Appl Math, Cornell U, New York "Conformal mapping on a computer" Thu 09/30/93 Computer Science Colloq., SUNY Buffalo, New York "The definition of numerical analysis" Fri 10/1/93 Mathematics Colloq., Queen's U, Kingston, Ontario, Canada "What eigenvalues don't tell you" Fri 10/15/93 Fall Research Forum in Dept. Comp Sci, Cornell, New York "Conformal mapping on a computer" Tue 10/19/93 First Matlab Meeting, invited, Cambridge, Massachusetts "Pseudozeros of polynomials and pseudospectra of companion matrices" Tue 10/26/93 CS713, Dept. of Computer Science, Cornell, New York "Writing, refereeing, corresponding, typing" Thu 04 Nov 1993, Rice U, Houston, Texas "Approximation theory, matrix iterations, pseudospectra, and lemniscates" Fri 12 Nov 1993, Computational and Applied Mathematics seminar, U Texas, Austin "Approximation theory, matrix iterations, pseudospectra, and lemniscates" Fri 12 Nov 1993, Nonlinear Dynamics seminar, U Texas, Austin, Texas chair: Harry Swinney (I think) "Hydrodynamic stability without eigenvalues" Thu 02 Dec 1993, Mathematics Colloq., U Massachusetts "What eigenvalues don't tell you" ---- 1992 ---- Thu 27 Feb 1992, IMA Conf Iterative Methods, Minneapolis, Minnesota "Lemniscates in the complex plane for Lanczos, Arnoldi, CR and GMRES" Wed 08 Apr 1992, Copper Mountain Conf Iter Meth, Colorado "Pseudospectra of differential operators" Tue 02 May 1992, Bill Sears talk, Ctr Applied Math., Cornell U, New York "Pseudospectra of non-normal matrices and operators, or, even linear problems can surprise you!" Wed 20 May 1992, Applied Mechanics Colloquium, Harvard U, Massachusetts "Spectra and pseudospectra of non-normal matrices and operators" 7/92 LMS Durham Symposium on Evolution Problems, Durham, England (invited) 1. "Spectra, pseudospectra, and a bit of history" 2. "Stability and convergence in numerical analysis" 3. "Linear, non-modal effects in hydrodynamics" 20-24 Jul 1992, SIAM 40th Anniversary Meeting, ? "Ideal Arnoldi and Ideal GMRES xxx xx Sep 1992, Mathematics Colloquium, Penn State U, Pennsylvania "A new approach to hydrodynamic stability" xxx xx Oct 1992, ICASE, NASA Langley Res. Ctr., Virginia "A new approach to hydrodynamic stability" Fri 06 Nov 1992, Courant Institute, New York "A new approach to hydrodynamic stability" xxx xx Dec 1992, Applied Math. Colloquium, Cornell U, New York "A new approach to hydrodynamic stability" ---- 1991 ---- Fri 13 Sep 1991, SIAM applied lin alg meeting, Minneapolis, Minnesota "The numerical range and the resolvent" Sat 14 Sep 1991, SIAM applied lin alg meeting, Minneapolis, Minnesota "What perturbations reveal about the unperturbed matrix" Fri 04 Oct 1991, Applied Math seminar, Cornell U, New York "The Orr-Sommerfeld operator and other non-normal differential operators: spectra, pseudospectra, and behavior" Sun 13 Oct 1991, Amer. Math. Soc. meeting, Philadelphia, Pennsylvania "Eigenvalues and pseudo-eigenvalues of nonsymmetric random matrices" Thu 24 Oct 1991, Indust affiliates, Comp Sci, Cornell U, New York "Recent developments in iterative methods for large nonsymmetric systems of equations" Mon 04 Nov 1991, ACRI seminar, Cornell, New York "Eigenvalues of random matrices, and why they matter in scientific computing" Fri 15 Nov 1991, Brown Bag Seminar, Comp Sci, Cornell U, New York "How people solve matrix problems nowadays in better than O(N^3) time" ---- 1984 ---- Tue 31 Jan 1984, U Mass Amherst, Appl. Math. Center, Massachusetts 15-20 people "Applications of the Schwarz-Christoffel map" Mon 06 Feb 1984, Fordham U, New York around 15 people "Applications of the Schwarz-Christoffel map" Thu 23 Feb 1984, U North Carolina, North Carolina around 20 people "Applications of the Schwarz-Christoffel map" Fri 24 Feb 1984, U North Carolina, North Carolina exactly 3 people. My smallest audience ever. "Applications of the Schwarz-Christoffel map" ---- 1983 ---- Mon 28 Feb 1983, IBM TJ Watson Research Center, New York 15-20 people incl Micchelli, Burbea, Cullum, Willoughby, Gustavsson "Stability for finite difference models of hyperbolic IBVPs" Tue 01 Mar 1983, NMath & CS, Rutgers U, New Jersey around 15 people incl Vichnevetsky, Falk, Gerasoulis "Stability for finite difference models of hyperbolic IBVPs" Wed 02 Mar 1983, CS, Bell Labs, New Jersey around 15 people incl Kaiser, Grosse, Coughran, Kaufman "Chebyshev approximation on the unit disk" Sometime in 1983, Numer Anal Stud Lunch sem, Courant Inst, New York around 25 people "Numerical conformal mapping of polygons" Wed 06 Jul 1983, AMS/SIAM summer sem large-scale CFD, La Jolla, California 50 min, audience around 35 "Group velocity and stability for one or two boundaries" later in Jul 1983, ICASE, NASA Langley, California "Group velocity and stability for one or two boundaries" Thu 11 Aug 1983, Oberwolfach meeting by Gaier-Henrici-Varga, Germany around 40 people, 30 min "Complex rational Pade and Chebyshev approximation" Tue 22 Nov 1983, MIT, Massachusetts around 20 people "Applications of the Schwarz-Christoffel map" Wed 30 Nov 1983, NASA Ames, California around 12 people "Applications of the Schwarz-Christoffel map" Fri 02 Dec 1983, UC Berkeley, California around 15 people, mostly students "Applications of the Schwarz-Christoffel map" Mon 05 Dec 1983, Caltech, California around 30 people "Applications of the Schwarz-Christoffel map" Tue 06 Dec 1983, UCLA, California around 20 people "Applications of the Schwarz-Christoffel map" ---- 1982 ---- Sat 27 Feb 1982, Numerical Analysis Day, UC Berkeley, California 30 min without notes (a mistake). Parlett later writes me a very flattering letter about how good a lecturer I am. "Group velocity and stability" Tue 18 May 1982, Fu-Jen U, Taipei, Taiwan 40 minutes to an audience of around 150 students "Numerical software libraries" Tue 18 May 1982, Academic Sinica, Taipei, Taiwan chair Cecilia Jea, 50 min, around 15 people. $25 honorarium. "Real and complex Chebyshev approximation" Wed 16 Jun 1982, CS Dept., U New South Wales, Sydney, Australia around 20 people incl Osborne, Trudinger, Brent, Anderssen, de Hoog "Group velocity and stability" Wed 23 Jun 1982, Math Dept., U New South Wales, Sydney, Australia around 15 people incl Sloan, Burns, Opie, Blatt, Smith "Real and complex Chebyshev approximation" Thu 24 Jun 1982, CS Dept., U New South Wales, Sydney, Australia Thu 17 Jun 1982, Math Dept., U Tasmania, Hobart, Australia chair David Elliott, 50 min, around 12 people incl Dave Paget "Real and complex Chebyshev approximation" around 20 people incl John Bennett "Group velocity and stability" Tue 13 Jul 1982, Sem. angew. Math., ETH Zurich, 75 min, Switzerland around 20 people incl Henrici, Gander, Gutknecht, Niessner, Fischer,... blackboard talk, with a few slides "Group velocity and stability" Wed 21 Jul 1982, Katol. Univ. Eichstaett, West Germany Chair Hans-Peter Blatt, around 6 people "Group velocity and stability" Mon 02 Aug 1982, NATO Inst Constr. Compl. Anal., Braunlage, Germany This was one of Henrici's 50-min invited lectures, turned over to me. 50 min, around 50 people incl Henrici, Meinguet, Brezinski, Gutknecht, Symm, Olver, Yun, Gaier. "Chebyshev approximation on the unit disk" ---- 1981 ---- Thu 26 Mar 1981, Comp. Methods in Seismology workshop, Salishan, Oregon around 60 people, 20 min. "Phenomena of wave propagation for difference equations" Fri 13 Apr 1981, Numerical Anal seminar, Stanford CS Dept., California around 30 people, incl Cybenko, Holt, Caflisch, Golub, Pan, Oliger, ---- 1980 ---- Wed 20 Feb 1980, 1980 Army Numerical Analysis Conf, NASA Ames, California 15 min, around 20 people "Computation and application of the Schwarz-Christoffel transformation" Thu 06 Mar 1980, Serra House student seminar, Stanford, California around 15 people, incl Golub, Oliger, Schreiber, LeVeque, Berger,... "RCF/Chebyshev approximation; digital filters" Fri 11 Jul 1980, Oberwolfach, Germany 50 min talk, around 35 people; talk followed by Gutknecht on _real_ CF "CF approximation" ---- 1979 ---- xxx xx Feb 1979, Stanford Computer Forum, Stanford, California 20 min, around 100 people Schwarz-Christoffel Thu 21 Jun 1979, Numer. Math. Colloq., ETH Zurich, Switzerland 1 hr, around 20 people incl Henrici, Gutknecht, Marti, Waldvogel, Berrut Schwarz-Christoffel Jun or Jul 1979, Doktorandseminar, ETH Zurich, Switzerland 1 hr, around 10 people incl Henrici, Gutknecht, Berrut "Chebyshev approximation in C" Wed 14 Nov 1979, SIAM Fall meeting, Denver, Colorado My first conference talk 15 min, about 30 people, incl Ian Sloan and Gene Golub Schwarz-Christoffel ---- 1978 ---- ---- 1977 ---- Autumn 1977, Serra house informal weekly seminar, Stanford, California 50 min about 20 people incl Golub, Oliger, Dahlquist, Gander, Wilkinson, Chan, Berger, LeVeque, Grosse, Coughran. Not a bad audience for my first research talk. "Chebyshev approximation in C"