A generalized contraction mapping theorem in E-metric spaces
James Daniel (1974)
Studia Mathematica
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Displaying similar documents to “Some fixed point theorems”
A generalized contraction mapping theorem in E-metric spaces
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Open mapping theorem and inversion theorem for γ-paraconvex multivalued mappings and applications
Abderrahim Jourani (1996)
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We extend the open mapping theorem and inversion theorem of Robinson for convex multivalued mappings to γ-paraconvex multivalued mappings. Some questions posed by Rolewicz are also investigated. Our results are applied to obtain a generalization of the Farkas lemma for γ-paraconvex multivalued mappings.
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