On behalf of those of us who in various ways have con­ tributed to this volume, and on behalf of all of his colleagues, students and friends throughout the world-wide scientific com­ munity, we dedicate this volume to
Gopinath Kallianpur as a tribute to his work and in appreciation for the insights which he has so graciously and generously offered, and continues to offer, to all of us. Stochastic Processes contains 41 articles related to
and frequently influ­ enced by Kallianpur's work. We regret that space considerations prevented us from including contributions from his numerous colleagues (at North Carolina, lSI, Minnesota, Michigan), former students,
co-authors and other eminent scientists whose work is akin to Kallianpur's. This would have taken several more volumes! All articles have been refereed, and for their valuable assistance in this we thank many of the
contributing authors, as well as: R. Bradley, M.H.A. Davis, R. Davis, J. Hawkins, J. Horowitz, C. Houdre, N.C. Jain, C. Ji, P. Kokoszka, T. Kurtz, K.S. Lau, W. Linde, D. Monrad, D. Stroook, D. Surgailis and S. Yakowitz. We
also thank June Maxwell for editorial assistance, Peggy Ravitch for help with the production of the volume, and Lisa Brooks for secretarial assistance. Finally, we are indebted to Dr. Martin Gilchrist, the Statistics editor,
and the Springer editorial board for their excellent cooperation and enthusiastic support throughout this project.