{ "id": "1210.1116", "version": "v2", "published": "2012-10-03T14:13:29.000Z", "updated": "2014-03-24T17:19:25.000Z", "title": "Stochastic Comparisons between hitting times for Markov Chains and words' occurrences", "authors": [ "Emilio De Santis", "Fabio Spizzichino" ], "comment": "20 pages", "categories": [ "math.PR" ], "abstract": "We develop some sufficient conditions for the stochastic ordering between hitting times, in a fixed state, for two Markov chains. In particular, we focus attention on the so called \\emph{skip-free} case. In the analysis of such a case, we develop a special type of coupling. We also compare different types of relations between two, non-necessarily skip-free, Markov chains on the same state space. Such relations have a natural role in establishing the usual and the asymptotic stochastic ordering between the probability distributions of hitting times. Finally, we present some discussions and examples related with words' occurrences.", "revisions": [ { "version": "v2", "updated": "2014-03-24T17:19:25.000Z" } ], "analyses": { "subjects": [ "60E15", "60J10" ], "keywords": [ "markov chains", "hitting times", "stochastic comparisons", "occurrences", "probability distributions" ], "note": { "typesetting": "TeX", "pages": 20, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1210.1116D" } } }