Geodesic
On Modulus of Noncompact Convexity and Its Properties
Canadian mathematical bulletin, Tome 30 (1987) no. 2, pp. 186-192

Voir la notice de l'article provenant de la source Cambridge University Press

In this paper we prove some properties of the so-called modulus of noncompact convexity. This notion was recently introduced by K. Goebel and T. Sȩkowski [6] and it appears to be an interesting and useful generalization of the classical Clarkson modulus of convexity. We extend the results obtained in [6] showing that the modulus of noncompact convexity is continuous and has some extra properties in reflexive Banach spaces. The properties applicable in the fixed point theory are also stated.
DOI : 10.4153/CMB-1987-027-8
Mots-clés : 46B20 
Banaś, Józef. On Modulus of Noncompact Convexity and Its Properties. Canadian mathematical bulletin, Tome 30 (1987) no. 2, pp. 186-192. doi: 10.4153/CMB-1987-027-8
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