Multiplicity results for semilinear elliptic equations with resonance at higher eigenvalues

Abstract critical point theorems and applications to some nonlinear problems with “strong” resonance at infinity

Paolo Bartolo, Vieri Benci, Donato Fortunato · Nonlinear Analysis · 1983 · 791 citations

Natural Sciences, Mathematics, Differential Equations +14

Critical point theory for asymptotically quadratic functionals and applications to problems with resonance

Thomas Bartsch, Shujie Li · Nonlinear Analysis · 1997 · 303 citations

Natural Sciences, Physics, Dynamical Systems +12

On differentiable functions with isolated critical points

Detlef Gromoll, Wolfgang Meyer · Topology · 1969 · 277 citations

Natural Sciences, Emergency Medical Services, Differential Equations +8

Applications of Local Linking to Critical Point Theory

S.J. Li, M. Willem · Journal of Mathematical Analysis and Applications · 1995 · 228 citations

Natural Sciences, Mathematics, Physics +14

Remarks on multiple solutions for asymptotically linear elliptic boundary value problems

Kung Ching Chang, Shujie Li, Jiaquan Liu · Topological Methods in Nonlinear Analysis · 1994 · 55 citations · Full text

Natural Sciences, Computational Engineering, Differential Equations +10