ABSORBING BOUNDARY CONDITIONS FOR THE TWO-DIMENSIONAL SCHRÖDINGER EQUATION WITH AN EXTERIOR POTENTIAL PART I: CONSTRUCTION AND A PRIORI ESTIMATES

Author:

ANTOINE XAVIER1,BESSE CHRISTOPHE2,KLEIN PAULINE3

Affiliation:

1. Institut Elie Cartan Nancy, Nancy-Université, CNRS UMR 7502, INRIA CORIDA Team, Boulevard des Aiguillettes B.P. 239, F-54506, Vandoeuvre-lès-Nancy, France

2. Laboratoire Paul Painlevé, Université Lille Nord de France, CNRS UMR 8524, INRIA SIMPAF Team, Université Lille 1 Sciences et Technologies, Cité Scientifique, 59655 Villeneuve d'Ascq Cedex, France

3. Laboratoire de Mathématiques de Besançon, CNRS UMR 6623, Université de Franche-Comté, 16 Route de Gray, 25030 Besançon, France

Abstract

The aim of this paper is to construct some classes of absorbing boundary conditions for the two-dimensional Schrödinger equation with a time and space varying exterior potential and for general convex smooth boundaries. The construction is based on asymptotics of the inhomogeneous pseudodifferential operators defining the related Dirichlet-to-Neumann operator. Furthermore, a priori estimates are developed for the truncated problems with various increasing order boundary conditions. The effective numerical approximation will be treated in a second paper.

Publisher

World Scientific Pub Co Pte Lt

Subject

Applied Mathematics,Modelling and Simulation

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