Positive harmonic functions of transformed random walks
arXiv:1610.04573 · doi:10.1007/s11118-018-9724-4
Abstract
In this paper, we will study the behavior of the space of positive harmonic functions associated with the random walk on a discrete group under the change of probability measure by a randomized stopping time. We show that this space remains unchanged after applying a bounded randomized stopping time.
Major revision