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A deformation lemma and some critical point theorems

Published online by Cambridge University Press:  17 April 2009

Yihong Du
Affiliation:
Department of Mathematics, Shandong University, Jinan, China
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Abstract

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A new deformation lemma for functions satisfying the Palais-Smale condition on a real Banach space is obtained. This is used to deduce some critical point theorems which are extensions of some well known results.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1991

References

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