{ "id": "1910.13709", "version": "v1", "published": "2019-10-30T08:15:30.000Z", "updated": "2019-10-30T08:15:30.000Z", "title": "On interweaving relations", "authors": [ "Laurent Miclo", "Pierre Patie" ], "categories": [ "math.PR", "math.AP" ], "abstract": "Interweaving relations are introduced and studied here in a general Markovian setting as a strengthening of usual intertwining relations between semigroups, obtained by adding a randomized delay feature. They provide a new classification scheme of the set of Markovian semigroups which enables to transfer from a reference semigroup and up to an independent warm-up time, some ergodic, analytical and mixing properties including the $\\varphi$-entropy convergence to equilibrium, the hyperboundedness and when the warm-up time is deterministic the cut-off phenomena. We also present several useful transformations that preserve interweaving relations. We provide a variety of examples of interweaving relations ranging from classical, discrete, and non-local Laguerre and Jacobi semigroups to degenerate hypoelliptic Ornstein-Uhlenbeck semigroups and some non-colliding particle systems", "revisions": [ { "version": "v1", "updated": "2019-10-30T08:15:30.000Z" } ], "analyses": { "keywords": [ "particle systems", "degenerate hypoelliptic ornstein-uhlenbeck semigroups", "independent warm-up time", "cut-off phenomena", "randomized delay feature" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }