El-Sayed, Wagdy Gomaa; Frączek, Krzysztof Remarks on some properties in the geometric theory of Banach spaces. (English) Zbl 0852.47025 Commentat. Math. Univ. Carol. 37, No. 1, 17-22 (1996). The aim of this paper is to derive some relationships between the concepts of the property of strong \((\alpha')\) introduced recently by Hong-Kun Xu and the so-called characteristic of near convexity defined by Goebel and Sȩkowski. Reviewer: J.Appell (Würzburg) Cited in 1 Document MSC: 47H09 Contraction-type mappings, nonexpansive mappings, \(A\)-proper mappings, etc. 46B20 Geometry and structure of normed linear spaces Keywords:property of strong \((\alpha')\); near convexity PDF BibTeX XML Cite \textit{W. G. El-Sayed} and \textit{K. Frączek}, Commentat. Math. Univ. Carol. 37, No. 1, 17--22 (1996; Zbl 0852.47025) Full Text: EuDML OpenURL