Levinson's theorem for Schrodinger operators with point interaction: a topological approach

被引：22
|
作者：
Kellendonk, Johannes [1 ]
Richard, Serge
机构：
[1] Univ Lyon, F-63003 Lyon, France
[2] Univ Lyon 1, Inst Camille Jordan, F-69622 Villeurbanne, France
[3] CNRS, UMR5208, F-69622 Villeurbanne, France
来源：
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 2006年 / 39卷 / 46期
关键词：
D O I：
10.1088/0305-4470/39/46/011
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In this paper, Levinson's theorems for Schrodinger operators in R-n with one-point interaction at 0 are derived using the concept of winding numbers. These results are based on new expressions for the associated wave operators.
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页码：14397 / 14403
页数：7
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