Fixed point theorems for weakly contractive multivalued maps

On nonlinear contractions

David W. Boyd, J. S. W. Wong · Proceedings of the American Mathematical Society · 1969 · 1K citations · Full text

Natural Sciences, Surgery, Topology +11

Some theorems on weakly contractive maps

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Fixed point theorems for multivalued mappings on complete metric spaces

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A general principle on ordered sets in nonlinear functional analysis

Haïm Brézis, Felix E. Browder · Advances in Mathematics · 1976 · 205 citations

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Multivalued nonexpansive mappings in Banach spaces

Hong‐Kun Xu · Nonlinear Analysis · 2001 · 51 citations

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