{ "id": "2211.15017", "version": "v1", "published": "2022-11-28T02:59:25.000Z", "updated": "2022-11-28T02:59:25.000Z", "title": "Random walks in time-inhomogeneous random environment conditioned to stay positive", "authors": [ "Wenming Hong", "Shengli Liang" ], "categories": [ "math.PR" ], "abstract": "We consider a random walk $\\{S_n\\}_{n\\in \\mathbb{N}}$ in time-inhomogeneous random environment $\\xi$. For almost each realization of $\\xi$, we formulate a quenched harmonic function, based on which we can define the random walk in random environment conditioned to stay positive by the Doob's $h$-transform. Furthermore, we prove a quenched invariance principle for the conditioned random walk for almost each realization of $\\xi$.", "revisions": [ { "version": "v1", "updated": "2022-11-28T02:59:25.000Z" } ], "analyses": { "subjects": [ "60G50", "60K37", "60F17" ], "keywords": [ "time-inhomogeneous random environment", "stay positive", "realization", "quenched invariance principle", "conditioned random walk" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }