On generalizations of the Ekeland-type variational principles

On the variational principle

Ivar Ekeland · Journal of Mathematical Analysis and Applications · 1974 · 2.3K citations · Full text

Natural Sciences, Mathematics, Physics +10

From optimization and variational inequalities to equilibrium problems

E. K. Blum, W. Oettli · Medical Entomology and Zoology · 1994 · 2.1K citations

Natural Sciences, Mathematics, Optimization +9

Nonconvex minimization problems

Ivar Ekeland · Bulletin of the American Mathematical Society · 1979 · 1K citations · Full text

Natural Sciences, Mathematics, Cost-minimization Analysis +16

Fixed point theorems for multivalued mappings on complete metric spaces

Noriko Mizoguchi, Wataru Takahashi · Journal of Mathematical Analysis and Applications · 1989 · 477 citations

Natural Sciences, Mathematics, Set Theory +11

NONCONVEX MINIMIZATION THEOREMS AND FIXED POINT THEOREMS IN COMPLETE METRIC SPACES

Osamu Kada, Tomonari Suzuki, Wataru Takahashi · Mathematica japonica · 1996 · 381 citations

Natural Sciences, Mathematics, Computational Geometry +8