Concepts of lower semicontinuity and continuous selections for convex valued multifunctions

  title={Concepts of lower semicontinuity and continuous selections for convex valued multifunctions},
  author={Krzysztof Przeławski and Longin E. Rybiński},
  journal={Journal of Approximation Theory},
Lower Semicontinuity Concepts, Continuous Selections, and Set Valued Metric Projections
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Continuous Selections for Multivalued Mappings with Closed Convex Images and Applications
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Michael's Selection Theorem under an Assumption Weaker than Lower Semicontinuous in H-spaces
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Bicommutants of multiplication operators
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Theorems of Namioka and R. E. Johnson type for upper semicontinuous and compact valued set-valued mappings
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Continuous Selections and Approximate Selection for Set-Valued Mappings and Applications to Metric Projections
Two new continuity properties for set-valued mappings are defined which are weaker than lower semicontinuity. One of these properties characterizes when approximate selections exist. A few selection