Guest Editors’ foreword

ARTICLE IN PRESS

Journal of Computer and System Sciences 68 (2004) 237 http://www.elsevier.com/locate/jcss

Guest Editors’ foreword

The papers in this issue appeared in preliminary form at the 33rd ACM Symposium on Theory of Computing (STOC), held in Crete, Greece, July 6–8, 2001. The authors of these papers were invited to submit completed versions to this Special Issue. All papers were refereed according to the usual standards of this journal. It is a pleasure to acknowledge the help of the other program committee members in the selection of these papers and to thank the authors and referees for their cooperation in making this Special Issue possible. Sampath Kannan E-mail address: [email protected] Department of Computer Information Science, University of Pennsylvania, Philadelphia, PA 19104, USA Mihalis Yannakakis E-mail address: [email protected] Computer Science Department, Stanford University, Stanford, CA 94305, USA

0022-0000/$ - see front matter r 2003 Elsevier Inc. All rights reserved. doi:10.1016/j.jcss.2003.07.001