https://peertube.r2.enst.fr/videos/watch/b83bf112-3649-4a0a-aaac-9ed9cb39df1f For further info, visit our website at https://www.lincs.fr​​​ Seminar talk by Laurent Decreusefond (Télécom-Paris) (22/06/2022) "Invertibility on the Poisson space and construction of Hawkes processes" Abstract Following previous investigations by Üstünel 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. Sat, 25 Jul 2026 23:28:25 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://peertube.r2.enst.fr https://peertube.r2.enst.fr/lazy-static/avatars/216a33fc-1ec0-4e00-aae8-030127d397f2.png https://peertube.r2.enst.fr/videos/watch/b83bf112-3649-4a0a-aaac-9ed9cb39df1f All rights reserved, unless otherwise specified in the terms specified at https://peertube.r2.enst.fr/about and potential licenses granted by each content's rightholder.