scientific article

zbMath0893.58019MaRDI QIDQ4034325

Xue-Feng Yang

Publication date: 16 May 1993

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

regularityexistencecritical point theorydegree theorygroup action\(G\)-equivariant

Mathematics Subject Classification ID

Abstract critical point theory (Morse theory, Lyusternik-Shnirel'man theory, etc.) in infinite-dimensional spaces (58E05) Harmonic maps, etc. (58E20)