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Hitting times for random walks on vertex-transitive graphs
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https://doi.org/10.1017/s0305004100068079Abstract
For random walks on finite graphs, we record some equalities, inequalities and limit theorems (as the size of graph tends to infinity) which hold for vertex-transitive graphs but not for general regular graphs. The main result is a sharp condition for asymptotic exponentiality of the hitting time to a single vertex. Another result is a lower bound for the coefficient of variation of hitting times. Proofs exploit the complete monotonicity properties of the associated continuous-time walk. © 1989, Cambridge Philosophical Society. All rights reserved.
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