We study a stochastic flow of l(1)-homeomorphisms of R. At certain stopping
times, the spatial derivative of the flow is a diffusion in the space vari
able and its generator is given This answers several questions posed in a p
revious study by Bass and Burdzy (1999, Arm. Probab. 27, 50-108). (C) 2000
Elsevier Science B.V. All rights reserved. MSC: 60J55; 60J60.