Ramos, M.; Rebelo, C. A unified approach to min-max critical point theorems. (English) Zbl 0831.58014 Port. Math. 51, No. 4, 489-516 (1994). The authors present an elementary introduction to the basic abstract results of critical point theory. This includes a version of the deformation lemma as well as classical linking theorems based on the minimax principle. The functionals considered are assumed to satisfy the Palais-Smale condition or variations theory. Reviewer: Th.J.Bartsch (Heidelberg) Cited in 3 Documents MSC: 58E05 Abstract critical point theory (Morse theory, Lyusternik-Shnirel’man theory, etc.) in infinite-dimensional spaces Keywords:critical point theory; deformation lemma; linking; minimax principle PDFBibTeX XMLCite \textit{M. Ramos} and \textit{C. Rebelo}, Port. Math. 51, No. 4, 489--516 (1994; Zbl 0831.58014) Full Text: EuDML