Title: Tenth Annual Southern California Symposium on Probability Theory Host: UCI Date: Monday, December 17, 1979 Organizer: D. A. Darling (UCI)? Location: All Sessions will be held in Room 101, Physical Sciences Building, University of California, Irvine. Program: 10:00 AM Coffee 10:30 AM Abel Klein (UCI) Stochastic processes associated with quantum systems 11:30 AM Richard Vitale (Claremont Graduate School) Some results and perspectives in geometric probability theory 12:30 PM - 2:00 PM Lunch 2:00 PM Peter Walters (University of Warwick: visiting USC) The theory and applications of topological Markov chains 3:00 PM - 3:30 PM Coffee 3:30 PM - 4:30 PM Herbert Heyer (University of T\"ubingen: visiting UCSD) Hemigroups of probability measures on a Lie group.