Displaying similar documents to “A Note on Suns in Convex Metric Spaces”

On δ -suns

T. D. Narang, Shavetambry Tejpal (2008)

Publications de l'Institut Mathématique

Similarity:

Strictly convex metric spaces with round balls and fixed points

Inese Bula (2005)

Banach Center Publications

Similarity:

The paper introduces a notion of strictly convex metric space and strictly convex metric space with round balls. These objects generalize the well known concept of strictly convex Banach space. We prove some fixed point theorems in strictly convex metric spaces with round balls.

When some variational properties force convexity

M. Volle, J.-B. Hiriart-Urruty, C. Zălinescu (2013)

ESAIM: Control, Optimisation and Calculus of Variations

Similarity:

The notion of adequate (resp. strongly adequate) function has been recently introduced to characterize the essentially strictly convex (resp. essentially firmly subdifferentiable) functions among the weakly lower semicontinuous (resp. lower semicontinuous) ones. In this paper we provide various necessary and sufficient conditions in order that the lower semicontinuous hull of an extended real-valued function on a reflexive Banach space is essentially strictly convex. Some new results...