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检索条件"主题词=James constant"
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The james constant for the l_3-l_1 Space
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Acta Mathematica Sinica,English Series 2016年 第9期32卷 1075-1079页
作者: Chang Sen YANG Hai Ying LI He'nan Engineering Laboratory for Big Data Statistical Analysis and Optimal Control School of Mathematics and Information SciencesHe'nan Normal University
In this note, the exact value of the james constant for the l3 - l1 space is obtained, J(l3 - l0 = 1.5573.... This result improves the known inequality, J(13 - 11) ≤4/3√10,which was given by Dhompongsa, Piraisang... 详细信息
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An Extension of a Simply Inequality Between von Neumann–Jordan and james constants in Banach Spaces
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Acta Mathematica Sinica,English Series 2017年 第9期33卷 1287-1296页
作者: Chang Sen YANG Feng Hui WANG College of Mathematics and Information Science He'nan Normal UniversityXinxiang 453007P.R.China Department of Mathematics Luoyang Normal UniversityLuoyang 471022P.R.China
For a non-trivial Banach space X, let J(X),CNj(X),C(P)NJ(X) respectively stand for the james constant, the yon Neumann-Jordan constant and the generalized yon Neumann-Jordan constant receatly inroduced by Cui ... 详细信息
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On a New Geometric constant Related to the Modulus of Smoothness of a Banach Space
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Acta Mathematica Sinica,English Series 2014年 第9期30卷 1526-1538页
作者: Yasuji TAKAHASHI Mikio KATO Department of System Engineering Okayama Prefectural University Department of Mathematics Faculty of EngineeringShinshu University
We shall introduce a new geometric constant A(X) of a Banach space X, which is closely related to the modulus of smoothness px (T), and investigate it in relation with the constant As (X) by Baronti et al., the ... 详细信息
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