Characterizations of rotundity and smoothness by approximate orthogonalities

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Characterizations of rotundity and smoothness by approximate orthogonalities

Journal Title: Annales Mathematicae Silesianae - Year 2016, Vol 30, Issue

Abstract

In this paper we consider the approximate orthogonalities in real normed spaces. Using the notion of approximate orthogonalities in real normed spaces, we provide some new characterizations of rotundity and smoothness of dual spaces.

Authors and Affiliations

Tomasz Stypuła, Paweł Wójcik

Keywords

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EP ID EP230430
DOI 10.1515/amsil-2016-0011
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