{ "id": "1706.03874", "version": "v1", "published": "2017-06-13T00:04:11.000Z", "updated": "2017-06-13T00:04:11.000Z", "title": "Precise large deviation estimates for branching process in random environment", "authors": [ "Dariusz Buraczewski", "Piotr Dyszewski" ], "comment": "28 pages", "categories": [ "math.PR" ], "abstract": "We consider the branching process in random environment $\\{Z_n\\}_{n\\geq 0}$, which is a~population growth process where individuals reproduce independently of each other with the reproduction law randomly picked at each generation. We describe precise asymptotics of upper large deviations, i.e. $\\mathbb{P}[Z_n > e^{\\rho n}]$. Moreover in the subcritical case, under the Cram\\'er condition on the mean of the reproduction law, we investigate large deviations-type estimates for the first passage time of the branching process in question and its total population size.", "revisions": [ { "version": "v1", "updated": "2017-06-13T00:04:11.000Z" } ], "analyses": { "subjects": [ "60J80", "60F10" ], "keywords": [ "precise large deviation estimates", "branching process", "random environment", "reproduction law", "first passage time" ], "note": { "typesetting": "TeX", "pages": 28, "language": "en", "license": "arXiv", "status": "editable" } } }