The papers contained in this volume are an indication of the topics th discussed and the
interests of the participants of The 9 International Conference on Probability in Banach Spaces
held at Sandjberg Denmark August 16-21 1993. A glance at the table of contents indicates the
broad range of topics covered at this conference. What defines research in this field is not so
much the topics considered but the generality of the ques tions that are asked. The goal is to
examine the behavior of large classes of stochastic processes and to describe it in terms of a
few simple prop erties that the processes share. The reward of research like this is that
occasionally one can gain deep insight even about familiar processes by stripping away
details that in hindsight turn out to be extraneous. A good understanding about the
disciplines involved in this field can be obtained from the recent book Probability in Banach
Spaces Springer-Verlag by M. Ledoux and M. Thlagrand. On page 5 of this book there is a
list of previous conferences in probability in Banach spaces including the other eight
international conferences. One can see that research in this field over the last twenty years
has contributed significantly to knowledge in probability and has had important applications in
many other branches of mathematics most notably in statistics and functional analysis.
