Managing Editors: Simon Donaldson s.donaldson@ic.ac.uk Victor Guillemin vwg@math.mit.edu Tomasz Mrowka mrowka@math.mit.edu Gang Tian tian@math.mit.edu Co-Editors: Yakov Eliashberg eliash@math.stanford.edu Helmut H. W. Hofer hofer@cims.nyu.edu Frances C. Kirwan kirwan@maths.ox.ac.uk Jerrold E. Marsden marsden@cds.caltech.edu http://www.cds.caltech.edu/~marsden Areas of Interest: Geometric mechanics, systems with symmetry, Hamiltonian and Lagrangian reduction theory, multi-symplectic geometry, applications to continuum mechanics, celestial mechanics, control theory, symplectic, variational and multi-symplectic numerical integrators, discrete mechanics. Marina Ratner Richard P. Stanley rstan@math.mit.edu http://math.mit.edu/~rstan Areas of Interest: Connections between combinatorics and symplectic geometry. Alan D. Weinstein alanw@math.berkeley.edu Areas of Interest: Symplectic geometry, Poisson geometry, microlocal analysis, semi-classical approximations, noncommutative geometry, quantization, Lie algebroids and groupoids. Shing-Tung Yau yau@math.harvard.edu Eduard J. Zehnder eduard.zehnder@math.ethz.ch