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Existence theorems of coupled fixed points

✍ Scribed by Yong-Zhuo Chen


Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
345 KB
Volume
154
Category
Article
ISSN
0022-247X

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In this paper, using the method of invariant sets of descending flow, the multiplicity of critical points of a functional is discussed. A main theorem, which is called chain of rings theorem, is obtained. The theoretical results are applied to nonlinear elliptic boundary value problems and at least