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Measures of noncompactness and normal type structures in Banach spaces. (English) Zbl 0846.46008

Summary: Relations of the Kuratowski and the Hausdorff measures of noncompactness with normal type structures are investigated in Banach spaces. In particular, two questions, respectively raised by Garcia-Falset, Jimenez-Melado and Llorens-Fuster and Gao and Lau, are answered.

MSC:

46B20 Geometry and structure of normed linear spaces
47H09 Contraction-type mappings, nonexpansive mappings, \(A\)-proper mappings, etc.
47H10 Fixed-point theorems
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