منابع مشابه
The James and von Neumann-Jordan type constants and uniform normal structure in Banach spaces
Recently, Takahashi has introduced the James and von Neumann-Jordan type constants. In this paper, we present some sufficient conditions for uniform normal structure and therefore the fixed point property of a Banach space in terms of the James and von Neumann-Jordan type constants and the Ptolemy constant. Our main results of the paper significantly generalize and improve many known results in...
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Let G be an abelian group with n elements. Let S be a sequence of elements of G, where the repetition of elements is allowed. Let |S| be the cardinality, or the length of S. A sequence S ⊆ G with |S| ≥ 2 is barycentric or has a barycentric-sum if it contains one element aj such that ∑ ai∈S ai = |S|aj . This paper is a survey on the following three barycentric constants: the k-barycentric Olson ...
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ژورنال
عنوان ژورنال: Journal of the Australian Mathematical Society
سال: 2009
ISSN: 1446-7887,1446-8107
DOI: 10.1017/s1446788709000202