Author:
Chalmers B.,Franchetti C.,Giaquinta M.
Abstract
The aim of this paper is to prove the following result: if X is a 2-dimensional symmetric real Banach space, then its self-length is greater than or equal to 2π. Moreover, the minimum value 2π is uniquely attained (up to isometries) by euclidean space.
Publisher
Cambridge University Press (CUP)
Cited by
4 articles.
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