On the use of KKM multifunctions in fixed point theory and related topics

On general minimax theorems

Maurice Sion · Pacific Journal of Mathematics · 1958 · 1.9K citations · Full text

Natural Sciences, Mathematics, Combinatorics +11

A generalization of Brouwer’s fixed point theorem

Shizuo Kakutani · Duke Mathematical Journal · 1941 · 1.2K citations

Natural Sciences, Mathematics, Applied Mathematics +8

On some non-linear elliptic differential-functional equations

Philip Hartman, Guido Stampacchia · Acta Mathematica · 1966 · 989 citations · Full text

Natural Sciences, Mathematics, Differential Equations +7

Fixed-point and Minimax Theorems in Locally Convex Topological Linear Spaces

Ky Fan · Proceedings of the National Academy of Sciences · 1952 · 978 citations · Full text

Life Sciences, Neuroscience, Psychology +17

A generalization of Tychonoff's fixed point theorem

Ky Fan · Mathematische Annalen · 1961 · 965 citations

Natural Sciences, Mathematics, Dynamical Systems +5