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A deformation lemma and some critical point theorems

Published online by Cambridge University Press:  17 April 2009

Yihong Du
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
Information
Bulletin of the Australian Mathematical Society , Volume 43 , Issue 1 , February 1991 , pp. 161 - 168
Copyright
Copyright © Australian Mathematical Society 1991

References

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