Some aspects of generalized Zbăganu and James constant in Banach spaces

We shall introduce a new geometric constant CZ(λ,μ,X){C}_{Z}\left(\lambda ,\mu ,X) based on a generalization of the parallelogram law, which was proposed by Moslehian and Rassias. First, it is shown that, for a Banach space, CZ(λ,μ,X){C}_{Z}\left(\lambda ,\mu ,X) is equal to 1 if and only if the nor...

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Bibliographic Details
Main Authors: Liu Qi, Sarfraz Muhammad, Li Yongjin
Format: Article
Language:English
Published: De Gruyter 2021-08-01
Series:Demonstratio Mathematica
Subjects:
Online Access:https://doi.org/10.1515/dema-2021-0033