{ "id": "1904.03253", "version": "v1", "published": "2019-04-05T19:56:30.000Z", "updated": "2019-04-05T19:56:30.000Z", "title": "Point-to-line last passage percolation and the invariant measure of a system of reflecting Brownian motions", "authors": [ "Will FitzGerald", "Jon Warren" ], "categories": [ "math.PR" ], "abstract": "This paper proves an equality in law between the invariant measure of a reflected system of Brownian motions and a vector of point-to-line last passage percolation times in a discrete random environment. A consequence describes the distribution of the all-time supremum of Dyson Brownian motion with drift. A finite temperature version relates the point-to-line partition functions of two directed polymers, with an inverse-gamma and a Brownian environment, and generalises Dufresne's identity. Our proof introduces an interacting system of Brownian motions with an invariant measure given by a field of point-to-line log partition functions for the log-gamma polymer.", "revisions": [ { "version": "v1", "updated": "2019-04-05T19:56:30.000Z" } ], "analyses": { "subjects": [ "60J65", "60B20", "60K35" ], "keywords": [ "invariant measure", "reflecting brownian motions", "point-to-line log partition functions", "finite temperature version relates", "dyson brownian motion" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }