Interpolation of operator ideals with an application to eigenvalue distribution problems
✍ Scribed by Hermann König
- Publisher
- Springer
- Year
- 1978
- Tongue
- English
- Weight
- 752 KB
- Volume
- 233
- Category
- Article
- ISSN
- 0025-5831
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📜 SIMILAR VOLUMES
We consider the eigenvalue problem of a class of non-compact linear operators given as the sum of a multiplication and a kernel operator. A degenerate kernel method with piecewise constant interpolation with respect to the second variable is used to approximate isolated eigenvalues of finite type. T
This paper is devoted to a general min-max characterization of the eigenvalues in a gap of the essential spectrum of a self-adjoint unbounded operator. We prove an abstract theorem, then we apply it to the case of Dirac operators with a Coulomb-like potential. The result is optimal for the Coulomb p