Filomat · 2016 · 39 citations · 20 references
Natural SciencesCommunicationStandard Form ContractsMetric GeometryMetric SpacesOperator TheoryComplete Metric Spaces
In the present paper, considering a new concept of multivalued almost F-contraction, we give a general class of multivalued weakly Picard operators on complete metric spaces. Also, we give some illustrative examples showing that our results are proper generalizations of some previous theorems.
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Multi-valued contraction mappings
Sam B. Nadler · Pacific Journal of Mathematics · 1969 · 2.3K citations · Full text