This paper considers the problem of finding the zeros of an operator G on a Hilbert space subject to a constraint of the general form P(x) = x. Convergence theorems are given for a class of iterative methods and, using these results, we derive several techniques for solving eigenvalue problems, one
A Concentration-Compactness Lemma with Applications to Singular Eigenvalue Problems
β Scribed by Didier Smets
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 177 KB
- Volume
- 167
- Category
- Article
- ISSN
- 0022-1236
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β¦ Synopsis
Let 0 R N be any open set. We study the nonlinear eigenvalue problem &2 p u =*V(x) |u| p&2 u, u # D 1, p 0 (0), where 1<p<N and V # L 1 loc (0) may have strong singularities and an indefinite sign. The key ingredient is a precised concentrationcompactness lemma related to V-dependent limiting problems. This work follows, extends, and simplifies that of A. Tertikas (1998, J. Funct. Anal. 154, 42 66) dealing with the positive linear case for 0=R N .
1999 Academic Press Soit 0 R N un ouvert quelconque, on e tudie le probleΓ me aux valeurs propres non line aire &2 p u=*V(x) |u| p&2 u, u # D 1, p 0 (0), ouΓ 1<p<N et V # L 1 loc (0) peut e^tre singulier et avoir un signe non de fini. L'outil principal est un lemme de concentration-compacite quantitatif ouΓ les probleΓ mes limites de pendent des singularite s de V. Ce travail fait suite, e tend, et simplifie des re sultats obtenus par A. Tertikas, (1998, J. Funct. Anal. 154, 42 66) pour le cas line aire avec 0=R N et V de signe constant.
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