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EQUILATERAL SETS IN UNIFORMLY SMOOTH BANACH SPACES
Published online by Cambridge University Press: 02 January 2014
Abstract
Let $X$ be an infinite-dimensional uniformly smooth Banach space. We prove that $X$ contains an infinite equilateral set. That is, there exist a constant $\lambda \gt 0$ and an infinite sequence $\mathop{({x}_{i} )}\nolimits_{i= 1}^{\infty } \subset X$ such that $\Vert {x}_{i} - {x}_{j} \Vert = \lambda $ for all $i\not = j$.
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- Copyright © University College London 2014
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