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Critical point theory and the minimax principle. (English) Zbl 0212.28902

Global Analysis, Proc. Sympos. Pure Math. 15, 185-212 (1970).

MSC:

58E05 Abstract critical point theory (Morse theory, Lyusternik-Shnirel’man theory, etc.) in infinite-dimensional spaces
57R70 Critical points and critical submanifolds in differential topology

Citations:

Zbl 0204.076