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Sub-exponential decay of operator kernels for functions of generalized Schrödinger operators

Authors: Jean-Marc Bouclet, François Germinet and Abel Klein
Journal: Proc. Amer. Math. Soc. 132 (2004), 2703-2712
MSC (2000): Primary 81Q10, 47F05; Secondary 35P05
Published electronically: April 21, 2004
MathSciNet review: 2054797
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Abstract: We study the decay at large distances of operator kernels of functions of generalized Schrödinger operators. We prove sub-exponential decay for functions in Gevrey classes and exponential decay for real analytic functions.

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Additional Information

Jean-Marc Bouclet
Affiliation: UMR 8524 CNRS, UFR de Mathématiques, Université de Lille 1, F-59655 Villeneuve d’Ascq Cédex, France

François Germinet
Affiliation: UMR 8524 CNRS, UFR de Mathématiques, Université de Lille 1, F-59655 Villeneuve d’Ascq Cédex, France
Address at time of publication: Département de Mathématiques, Université de Cergy-Pontoise, Site de Saint-Martin, 2 avenue Adolphe Chauvin, 95302 Cergy-Pontoise cedex, France

Abel Klein
Affiliation: Department of Mathematics, University of California Irvine, Irvine, California 92697-3875

Keywords: Schr\"odinger operator, acoustic operator, Maxwell operator, Combes-Thomas estimate, operator kernel, Gevrey class
Received by editor(s): February 13, 2003
Received by editor(s) in revised form: July 7, 2003
Published electronically: April 21, 2004
Additional Notes: The third author was supported in part by NSF Grant DMS-0200710.
Communicated by: Joseph A. Ball
Article copyright: © Copyright 2004 American Mathematical Society

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