{ "id": "2307.02887", "version": "v1", "published": "2023-07-06T09:43:42.000Z", "updated": "2023-07-06T09:43:42.000Z", "title": "Invertibility of functionals of the Poisson process and applications", "authors": [ "Laure Coutin", "Laurent Decreusefond" ], "categories": [ "math.PR" ], "abstract": "Following previous investigations by {\\\"U}st{\\\"u}nel [22] about the invertibility of some transformations on the Wiener space, we find some entropic conditions under which a random change of time is invertible on the Poisson space. As a consequence, we provide a new construction of Hawkes processes. We also establish a new variational representation of the entropy.", "revisions": [ { "version": "v1", "updated": "2023-07-06T09:43:42.000Z" } ], "analyses": { "keywords": [ "poisson process", "invertibility", "applications", "functionals", "variational representation" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }