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Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826(online) ISSN 0002-9939(print)

 

Smooth norms that depend locally on finitely many coordinates


Author: Petr Hájek
Journal: Proc. Amer. Math. Soc. 123 (1995), 3817-3821
MSC: Primary 46B20
MathSciNet review: 1285993
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Abstract: We characterize separable normed spaces that admit equivalent $ {C^\infty }$-smooth norms depending locally on finitely many coordinates. It follows, in particular, that such norms exist on any normed space with countable algebraic basis.


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DOI: http://dx.doi.org/10.1090/S0002-9939-1995-1285993-3
PII: S 0002-9939(1995)1285993-3
Article copyright: © Copyright 1995 American Mathematical Society