{ "id": "1505.07622", "version": "v1", "published": "2015-05-28T10:05:06.000Z", "updated": "2015-05-28T10:05:06.000Z", "title": "Strong renewal theorems with infinite mean beyond local large deviations", "authors": [ "Zhiyi Chi" ], "comment": "Published at http://dx.doi.org/10.1214/14-AAP1029 in the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)", "journal": "Annals of Applied Probability 2015, Vol. 25, No. 3, 1513-1539", "doi": "10.1214/14-AAP1029", "categories": [ "math.PR" ], "abstract": "Let $F$ be a distribution function on the line in the domain of attraction of a stable law with exponent $\\alpha\\in(0,1/2]$. We establish the strong renewal theorem for a random walk $S_1,S_2,\\ldots$ with step distribution $F$, by extending the large deviations approach in Doney [Probab. Theory Related Fileds 107 (1997) 451-465]. This is done by introducing conditions on $F$ that in general rule out local large deviations bounds of the type $\\mathbb{P}\\{S_n\\in(x,x+h]\\}=O(n)\\overline{F}(x)/x$, hence are significantly weaker than the boundedness condition in Doney (1997). We also give applications of the results on ladder height processes and infinitely divisible distributions.", "revisions": [ { "version": "v1", "updated": "2015-05-28T10:05:06.000Z" } ], "analyses": { "keywords": [ "strong renewal theorem", "infinite mean", "local large deviations bounds", "ladder height processes", "large deviations approach" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2015arXiv150507622C" } } }