Discreteness of the spectrum of a boundary-value problem
β Scribed by J. Macionis
- Publisher
- Springer
- Year
- 1981
- Tongue
- English
- Weight
- 273 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0363-1672
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π SIMILAR VOLUMES
In this note a matrix partial differential operator is considered. It is shown that under certain conditions it defines a closed operator with nonempty resolvent set, and its essential spectrum is determined. In the symmetric case G. D. RAIKOV obtained earlier corresponding results (under slightly d
This paper aims to show the existence of nontrivial solutions for discrete elliptic boundary value problems by using the "Mountain Pass Theorem". Some conditions are obtained for discrete elliptic boundary value problems to have at least two nontrivial solutions. The results obtained improve the con