January 29, 2007 11:38 WSPC/Trim Size: 9in x 6in for Proceedings Foreword iii FELIX BEREZIN LIFE AND DEATH OF THE MASTERMIND OF SUPERMATHEMATICS Edited by M. Shifman January 29, 2007 11:38 WSPC/Trim Size: 9in x 6in for Proceedings Foreword iv Copyright page The Editor and Publisher would like to thank the American Math- ematical Society for their kind permission to reprint the articles of V. Maslov, R. Minlos, M. Shubin, N. Vvedenskaya and the first article of A. Vershik from the American Mathematical Society Translations, Series 2, Advances in the Mathematical Sciences, Volume 175, 1996. Paintings Alexandra Rozenman Black-and-white sketches Yuri Korjevsky Graphic design Leigh Simmons Photographs Elena Karpel’s collection FELIX BEREZIN: LIFE AND DEATH OF THE MASTERMIND OF SUPERMATHEMATICS January 29, 2007 11:38 WSPC/Trim Size: 9in x 6in for Proceedings Foreword FOREWORD M. SHIFMAN W.I. Fine Theoretical Physics Institute, University of Minnesota, Minneapolis, MN 55455, USA
[email protected] The story of this Memorial Volume is as follows. In the fall of 2005 Arkady Vainshtein mentioned in passing that he had received Elena Karpel’s essay on Felix Berezin from his friend Dmitri Gitman. Of course, every student and every practitioner of modern field theory knows the Berezin integral over the Grassmann variables, which con- stitutes the basis of the current approach to theories with fermions and quantization of gauge theories (introduction of ghosts). Without using the Berezin integral, string theory and supersymmetry stud- ies, which are at the focus of modern high-energy physics, would be extremely hard, if not impossible.