Locally Ekeland's variational principle and some surjective mapping theorems

zbMath0912.47042MaRDI QIDQ1266280

Cheng-Kui Zhong, Pei-Hao Zhao

Publication date: 16 September 1998

Published in: Chinese Annals of Mathematics. Series B (Search for Journal in Brave)

zbMATH Keywords

variational principleextremum problemsurjective mappingsGâteaux differentiable functionalweak P.S. condition

Mathematics Subject Classification ID

Variational and other types of inequalities involving nonlinear operators (general) (47J20) Abstract critical point theory (Morse theory, Lyusternik-Shnirel'man theory, etc.) in infinite-dimensional spaces (58E05) Methods involving semicontinuity and convergence; relaxation (49J45) Derivatives of functions in infinite-dimensional spaces (46G05)

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