A deformation lemma and its applications

zbMath0734.58015MaRDI QIDQ810956

Yihong Du

Publication date: 1991

Published in: Chinese Science Bulletin (Search for Journal in Brave)

zbMATH Keywords

Palais-Smale conditioncritical pointsdeformationmountain passsupinf

Mathematics Subject Classification ID

Iterative procedures involving nonlinear operators (47J25) Equations involving nonlinear operators (general) (47J05) Implicit function theorems; global Newton methods on manifolds (58C15) Dynamical systems with hyperbolic behavior (37D99) Morse-Smale systems (37D15)

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