Weak stability of factorizations of operator pencils
β Scribed by V. S. Zayachkovskii; A. A. Pankov
- Publisher
- Springer US
- Year
- 1990
- Tongue
- English
- Weight
- 226 KB
- Volume
- 52
- Category
- Article
- ISSN
- 1573-8795
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π SIMILAR VOLUMES
## Abstract The paper introduces a new class of two parameter nonβoverdamped operator pencils arising from evolution equations. We investigate spectral properties, including variational principles for βinteriorβ points of the spectrum. Examples leading to pencils of the new class are given. (Β© 2006
The paper is devoted to a general factorization theorem for "continuous" set-valued mappings defined on arbitrary topological spaces. This result fits naturally into the selection theory showing that several known selection theorems remain valid under minimal hypotheses. Also, the result is successf