A Tight Bound for the Lamplighter Problem
نویسندگان
چکیده
We settle an open problem, raised by Y. Peres and D. Revelle, concerning the L mixing time of the random walk on the lamplighter graph. We also provide general bounds relating the entropy decay of a Markov chain to the separation distance of the chain, and show that the lamplighter graphs once again provide examples of tightness of our results.
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