On a Brownian motion with a hard membrane
arXiv:1511.01043 · doi:10.1016/j.spl.2016.02.005
Abstract
Local perturbations of a Brownian motion are considered. As a limit we obtain a non-Markov process that behaves as a reflected Brownian motion on the positive half line until its local time at zero reaches some exponential level, then changes a sign and behaves as a reflected Brownian motion on the negative half line until some stopping time, etc.
9 pages