{ "id": "1302.6529", "version": "v4", "published": "2013-02-26T18:40:28.000Z", "updated": "2013-10-08T13:24:55.000Z", "title": "Heat kernel estimates for pseudodifferential operators, fractional Laplacians and Dirichlet-to-Neumann operators", "authors": [ "Heiko Gimperlein", "Gerd Grubb" ], "comment": "31 pages, to appear in J. Evolution Eq", "categories": [ "math.AP", "math.FA" ], "abstract": "The purpose of this article is to establish upper and lower estimates for the integral kernel of the semigroup exp(-tP) associated to a classical, strongly elliptic pseudodifferential operator P of positive order on a closed manifold. The Poissonian bounds generalize those obtained for perturbations of fractional powers of the Laplacian. In the selfadjoint case, extensions to t in C_+ are studied. In particular, our results apply to the Dirichlet-to-Neumann semigroup.", "revisions": [ { "version": "v4", "updated": "2013-10-08T13:24:55.000Z" } ], "analyses": { "subjects": [ "35K08", "58J35", "58J40", "47D06" ], "keywords": [ "heat kernel estimates", "fractional laplacians", "dirichlet-to-neumann operators", "strongly elliptic pseudodifferential operator", "lower estimates" ], "note": { "typesetting": "TeX", "pages": 31, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1302.6529G" } } }