Perturbations of selfadjoint operators with point spectra by restrictions and selfadjoint extensions
✍ Scribed by Konrad Schmüdgen
- Publisher
- Springer
- Year
- 1981
- Tongue
- English
- Weight
- 672 KB
- Volume
- 256
- Category
- Article
- ISSN
- 0025-5831
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📜 SIMILAR VOLUMES
## Abstract We consider a class of non‐selfadjoint operators generated by the equation and the boundary conditions, which govern small vibrations of an ideal filament with non‐conservative boundary conditions at one end and a heavy load at the other end. The filament has a non‐constant density and
We consider some properties of the spectral expansions related to selfadjoint extensions of the operator Hu -----u" + q(x)u over the whole line R in the case when q(x) is a continuous periodic function (the Hill operator) and in the case when q(x) is a bounded measurable function. This paper gives a