Spectral shift via “lateral” perturbation
We consider a compact perturbation H0 D S C K0 *K0 of a self-adjoint operator S with an eigenvalue λı below its essential spectrum and the corresponding eigenfunction f . The perturbation is assumed to be “along” the eigenfunction f, namely K0f D 0. The eigenvalue λı belongs to the spectra of both H...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
European Mathematical Society Publishing House
2022
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| Subjects: | |
| Online Access: | View Fulltext in Publisher |