No more than three favourite sites for simple random walk

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/59076We prove that, with probability one, eventually there are no more than three favourite (i.e. most visited) sites of simple random walk. This partially answers a relatively long standing question of Pal Erdos and Pal Revesz.20 pagesProbability60J15, 60J55No more than three favourite sites for simple random walktext