2019

*Minisymposium on Gauge Theory and Partial Differential Equations*,
part of *the SIAM Conference on Analysis of Partial Differential
Equations*, La Quinta, California, the U.S.A., December 2019.

*Geometry and Mathematical Physics seminar*,
University of York, York, November 2019.

*Geometry seminar*,
University of Leeds, Leeds, October 2019.

*School
and Workshop on Gauge Theories and Differential Invariants *,
The Abdus Salam International Centre for Theoretical Physics, Trieste,
Italy, October 2019.

*
Geometry and Physics of Higgs bundles*, Oberwolfach, Germany, May 2019.

*Geometry and Physics seminar*, California Institute of Technology,
Pasadena, the U.S.A., March 2019.

*Geometry and Analysis Seminar*,
Mathematical Institute, University of Oxford, January 2019.
(slides)

2018

*Special Holonomy: Progress and Open Problems 2018*,
Simons Center for Geometry and Physics, Stonybrook, the U.S.A., September 2018.

*Masterclass*,
Centre for Quantum Geometry of Moduli Spaces, Aarhus University, Aarhus, Denmark, August 2018.

2017

*String Theory Seminar*,
Mathematical Institute, University of Oxford, November 2017.

*Dublin Mathematics Colloquium*,
Trinity College Dublin, Dublin, Ireland, October 2017.

*Geometry seminar*,
Trinity College Dublin, Dublin, Ireland, October 2017.

*Differential topology seminar*,
Kyoto University, Kyoto, July 2017.

*Geometry seminar*, Meiji University, Kawasaki, June 2017.
(Japanese page)

*Geometry seminar*, Osaka University, Toyonaka, May 2017.

*Gauge theory and categorification*, IPAM, UCLA, Los Angels, the U.S.A., March 2017.

*Analysis seminar*, Department of Mathematics, Peking University, Beijing, China, January 2017.

2016:

*Working seminar on the Vafa-Witten invariants, *, Kyoto University, Kyoto, December 2016.

*Colloquium, Department of Mathematics*, National Tsing Hua University, Hsinchu, Taiwan, Ocotober 2016.

*13th Taiwan geometry symposium*, National Cheng Kung University, Tainan, Taiwan, October 2016.

*Lectures on Vafa-Witten invariants (60 minutes times 6)*, National Center for Theoretical Sciences, National Taiwan University, Taipei, Taiwan, October 2016.

*MSJ Autumn meeting 2016
*, Kansai University, Osaka September 2016.

*The second China-Japan geometry conference*, Fujian Normal University,
Fuzhou, China, September 2016.

*63rd Geometry Symposium*, Okayama University, Okayama, August 2016.
(Japanese page)

*TiTech Geometry Seminar*, Tokyo Institute of Technology, Tokyo, June 2016.

*Geometry seminar*, Nagoya University, Nagoya, April 2016.
(Japanese page)

*Kansai-region gauge theory seminar*,
Kyoto University, Kyoto, January 2016.
(Japanese page)

2015:

*Differential and complex geometry seminar*, Korea Institute for Advanced Study, Seoul, South Korea, June
2015.

*Mathematics Department Seminar*, Seoul National University, Seoul, South Korea, June 2015.

2014:

*The 20th Symposium on Complex Geometry*,
Sugadaira, November, 2014.
(Japanese page)

*Gauge Theories in Higher Dimensions*, Riemann Center for Geometry and Physics, University of Hanover, Hanover, Germany, August 2014.

*Workshop in The Geometry, Topology and Physics of Moduli Spaces of Higgs Bundles*, Institute for Mathematical Sciences,
National University of Singapore,
Singapore, July 2014.

*NCTS (South) Geometry Conference*, NCTS (South), National Cheng Kung University, Tainan, Taiwan, July 2014.

2013:

*
Geometry Colloquium *, University of Tokyo, Tokyo, January 2013.

2012:

*
Differential topology seminar*, Kyoto University, Kyoto, October. 2012.

*
Geometry seminar*, Nagoya University, Nagoya, June 2012.

2010:

*Centre for Quantum Geometry of Moduli Spaces seminar*,
Centre for Quantum Geometry of Moduli Spaces,
Aarhus University, Aarhus, Denmark, November 2010.

2009:

*
Algebraic and symplectic geometry seminar*, Mathematical Institute, University of Oxford, Oxford, the U.K., March 2009.

*
Symplectic geometry seminar*, Beijing International Center for Mathematical Research, Peking University, Beijing, China, March 2009.

2008:

*
Geometry seminar*, Boston University, Boston, the U.S.A., April 2008.

*
Everytopic seminar*, Brandeis University, Waltham, the U.S.A., April 2008.

*
Group Actions in geometry seminar*,
Massachusetts Institute of Technology, Cambridge, the U.S.A., March 2008.

*
Gauge group seminar*,
Massachusetts Institute of Technology, Cambridge, the U.S.A., March 2008.

2007:

*
Geometry seminar*,
Massachusetts Institute of Technology, Cambridge, the U.S.A., October, 2007.

*Geometry seminar*, Nagoya University, Nagoya, June 2007.

2006:

*Differential Equations on Manifolds*, Kanazawa University, Kanazawa,
December. 2006.

*
Noncommutativity*,
Institut des Hautes Études Scientifiques, Bures-sur-Yvette, France, November 2006.

*
12th International Symposium on Complex Geometry*, Sugadaira, October
2006.
(Japanese page)

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