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A pythagorean approach in Banach spaces
Journal of Inequalities and Applications volume 2006, Article number: 94982 (2006)
Abstract
Let be a Banach space and let be the unit sphere of. Parameters,,, and, where and are introduced and studied. The values of these parameters in the spaces and function spaces are estimated. Among the other results, we proved that a Banach space with, or is uniform nonsquare; and a Banach space with, or has uniform normal structure.
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Gao, J. A pythagorean approach in Banach spaces. J Inequal Appl 2006, 94982 (2006). https://doi.org/10.1155/JIA/2006/94982
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DOI: https://doi.org/10.1155/JIA/2006/94982