Denis Auroux auroux@math.mit.edu Simon Donaldson s.donaldson@ic.ac.uk Victor Guillemin vwg@math.mit.edu

Tomasz Mrowka mrowka@math.mit.edu Gang Tian tian@math.princeton.edu

Co-Editors:

Denis Auroux auroux@math.mit.edu Paul Biran biranp@post.tau.ac.il Yakov Eliashberg eliash@math.stanford.edu Frances C. Kirwan kirwan@maths.ox.ac.uk Jerrold E. Marsden marsden@cds.caltech.edu Marina Ratner UC Berkeley, Dept of Mathematics

Paul Seidel seidel@math.mit.edu Richard P. Stanley rstan@math.mit.edu Zoltán Szabó szabo@math.princeton.edu Alan D. Weinstein alanw@math.berkeley.edu Shing-Tung Yau yau@math.harvard.edu Eduard J. Zehnder eduard.zehnder@math.ethz.ch

Editorial Assistant:

Michael Collver collver@math.mit.edu