Chief Editor (with R.D. James), Archive for Rational Mechanics and Analysis.

Member of Editorial Boards of: Analyse Nonlinéaire (Institut Henri  Poincaré); Annali di Matematica Pura ed Applicata;  Applicable Analysis; Calculus of Variations and Partial Differential Equations; Control, Optimisation and Calculus of Variations; Dynamics and Differential Equations;  Journal of Differential Equations; Journal of Elasticity;   Journal des Mathématiques Pures et Appliquées;  Mathematical Methods and Models in Applied Science; Mathematical Modelling and Numerical Analysis; Tbilisi Mathematical Journal;.

Editor, Oxford Mathematical Monographs; Oxford Lecture Series in Mathematics and its Applications (Oxford University Press).

Consulting Editor, World Scientific Series in Applicable Analysis;

Editorial Board, Unione Matematica Italiana Lecture Notes Series.