Hyperconvexity and approximate fixed points

Six theorems about injective metric spaces

John Isbell · Commentarii Mathematici Helvetici · 1964 · 381 citations

Natural Sciences, Mathematics, Applied Mathematics +10

Extension of uniformly continuous transformations and hyperconvex metric spaces

N. Aronszajn, Prom Panitchpakdi · Pacific Journal of Mathematics · 1956 · 350 citations · Full text

Natural Sciences, Mathematics, Topology +10

On non-expansive mappings of Banach spaces

Michael Edelstein · Mathematical Proceedings of the Cambridge Philosophical Society · 1964 · 92 citations

Natural Sciences, Mathematics, Topology +7

Existence of fixed points of nonexpansive mappings in certain Banach lattices

Paolo M. Soardi · Proceedings of the American Mathematical Society · 1979 · 84 citations · Full text

Architecture, Architectural Theory, Axonometric Projection +7

On nonlinear contraction semigroups in sup norm spaces

Robert Sine · Nonlinear Analysis · 1979 · 58 citations

Natural Sciences, Property Law, Temporary Anchorage Devices +7