On a three critical points theorem
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Publication:1590721
DOI10.1007/s000130050496zbMath0979.35040OpenAlexW2093994222MaRDI QIDQ1590721
Publication date: 13 February 2002
Published in: Archiv der Mathematik (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.1007/s000130050496
Existence of solutions for minimax problems (49J35) Abstract critical point theory (Morse theory, Lyusternik-Shnirel'man theory, etc.) in infinite-dimensional spaces (58E05) Variational methods for second-order elliptic equations (35J20)
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