{ "id": "2203.01499", "version": "v1", "published": "2022-03-03T03:21:42.000Z", "updated": "2022-03-03T03:21:42.000Z", "title": "Smoothness of the fundamental solution of Schrödinger equations with mild trapping", "authors": [ "Kouichi Taira" ], "comment": "6 pages", "categories": [ "math.AP" ], "abstract": "In this short note, smoothness of the fundamental solution of Schr\\\"odinger equations on a complete manifold is studied. It is shown that (1) the fundamental solution is smooth under \"mild\" trapping conditions; (2) there is a Riemannian manifold which is equal to Euclidean space outside a compact set such that the fundamental solution is not smooth.", "revisions": [ { "version": "v1", "updated": "2022-03-03T03:21:42.000Z" } ], "analyses": { "subjects": [ "35A08", "35A21", "35R01" ], "keywords": [ "fundamental solution", "schrödinger equations", "mild trapping", "smoothness", "euclidean space outside" ], "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable" } } }