Characterizations of Rotundity and Smoothness by Approximate Orthogonalities
y | 23 sept 2016
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Publicado en línea: 23 sept 2016
Páginas: 193 - 201
Recibido: 01 mar 2016
Aceptado: 08 jun 2016
DOI: https://doi.org/10.1515/amsil-2016-0011
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© 2016 Tomasz Stypuła et al., published by De Gruyter Open
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
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.