Eigenfunctions of a weighted Laplace operator in the whole space

被引:5
|
作者
Arar, Nouria [1 ]
Boulmezaoud, Tahar Z. [2 ]
机构
[1] Univ Mentouri, Dept Math, Constantine, Algeria
[2] Univ Versailles St Quentin En Yvelines, Lab Math Versailles, F-78035 Versailles, France
关键词
Laplace operator; Unbounded domains; Rational functions; Stereographic projection; Weighted spaces; HALF-SPACE;
D O I
10.1016/j.jmaa.2012.06.009
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We study the spectrum of the weighted Laplacian rho(-1) Delta in the whole space R-n. We prove, under adequate conditions on rho(-1), that this spectrum is discrete and we derive an explicit formula for eigenvalues and eigenfunctions when rho(-1) = (vertical bar x vertical bar(2) + 1)(2). We get by the way a complete family of rational functions which are mutually orthogonal in a weighted L-2 space. (C) 2012 Elsevier Inc. All rights reserved.
引用
收藏
页码:161 / 173
页数:13
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