关于Banach spaces failing the almost isometric universal extension property的一个注记
The definition of property A with constant a was introduced by D. M. Speegle, who proved that every infinite dimensional separable uniformly smooth Banach space has property A with constant α∈ [0, 1). In this paper, we give a sufficient condition for a Banach space to have property A with constant α∈ [0, 1), and some remarks on Speegle's paper [1].
作 者： 詹华英 ZHAN Hua Ying 作者单位： College of Science, Tianjin University of Technology, Tianjin 300384, China;School of Mathematics, Nankai University, Tianjin 300017, China 刊 名： 数学研究与评论 ISTIC PKU 英文刊名： JOURNAL OF MATHEMATICAL RESEARCH AND EXPOSITION 年，卷(期)： 2008 28(3) 分类号： O177.2 关键词： property A with constant α modulus of convexity λ-EP λ-UEP