\magnification=1200 \baselineskip=20pt \nopagenumbers \font\big=cmr12 scaled \magstep2 \centerline{\bf STANFORD UNIVERSITY} \centerline{\bf DEPARTMENT OF STATISTICS} \centerline{\bf MONTE CARLO MARKOV CHAINS IN SCIENTIFIC COMPUTING} \bigskip \baselineskip=12pt \centerline{3:15 p.m., Thursday, November 30, 2000} \centerline{Sequoia Hall Rm. 200} \bigskip \baselineskip=15pt \centerline{\sl Susan Holmes} \centerline{\sl Department of Statistics} \centerline{\sl Stanford University} \bigskip \centerline{\bf Random Walks on Tree Space} \bigskip The decomposition of the space of binary trees as a quotient of groups gives a Fourier type analysis that enables the analysis of the random walk on this space that may prove useful as a reference for other walks. (Joint work with Persi Diaconis.) \bye