Direct and Inverse Spectral Problems for Rank-One Perturbations of Self-adjoint Operators

被引:4
作者
Dobosevych, Oles [1 ]
Hryniv, Rostyslav [1 ,2 ]
机构
[1] Ukrainian Catholic Univ, 2a Kozelnytska Str, UA-79026 Lvov, Ukraine
[2] Univ Rzeszow, 1 Pigonia Str, PL-35959 Rzeszow, Poland
关键词
Operators; Rank-one perturbations; Non-simple eigenvalues; Eigenvalue asymptotics; EIGENVALUES; MATRIX; APPROXIMATIONS;
D O I
10.1007/s00020-021-02630-y
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
For a given self-adjoint operator A with discrete spectrum, we completely characterise possible eigenvalues of its rank-one perturbations B and discuss the inverse problem of reconstructing B from its spectrum.
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页数:18
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