Separation cut-offs for birth and death chains
概率论
2007-05-23 v1
摘要
This paper gives a necessary and sufficient condition for a sequence of birth and death chains to converge abruptly to stationarity, that is, to present a cut-off. The condition involves the notions of spectral gap and mixing time. Y. Peres has observed that for many families of Markov chains, there is a cut-off if and only if the product of spectral gap and mixing time tends to infinity. We establish this for arbitrary birth and death chains in continuous time when the convergence is measured in separation and the chains all start at 0.
引用
@article{arxiv.math/0702411,
title = {Separation cut-offs for birth and death chains},
author = {Persi Diaconis and Laurent Saloff-Coste},
journal= {arXiv preprint arXiv:math/0702411},
year = {2007}
}
备注
Published at http://dx.doi.org/10.1214/105051606000000501 in the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)