Banach spaces of functions satisfying a modulus of continuity condition
Robert Fraser (1969)
Studia Mathematica
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Robert Fraser (1969)
Studia Mathematica
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Heiko Berninger, Dirk Werner (2003)
Extracta Mathematicae
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Tamás Keleti (1998)
Colloquium Mathematicae
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Robert Fraser (1970)
Fundamenta Mathematicae
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Marek Balcerzak, Zoltán Buczolich, Miklós Laczkovich (1997)
Colloquium Mathematicae
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J. Grzybowski, D. Pallaschke, R. Urbański (2007)
Control and Cybernetics
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Arya Jamshidi, Fereshteh Sady (2013)
Open Mathematics
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In this paper we first consider a real-linear isometry T from a certain subspace A of C(X) (endowed with supremum norm) into C(Y) where X and Y are compact Hausdorff spaces and give a result concerning the description of T whenever A is a uniform algebra on X. The result is improved for the case where T(A) is, in addition, a complex subspace of C(Y). We also give a similar description for the case where A is a function space on X and the range of T is a real subspace of C(Y) satisfying...
Dean Ives (2010)
Commentationes Mathematicae Universitatis Carolinae
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We show that the following well-known open problems on existence of Lipschitz isomorphisms between subsets of Hilbert spaces are equivalent: Are balls isomorphic to spheres? Is the whole space isomorphic to the half space?
Adam Parusiński (2005)
Annales Polonici Mathematici
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Given a Lipschitz stratification 𝒳 that additionally satisfies condition (δ) of Bekka-Trotman (for instance any Lipschitz stratification of a subanalytic set), we show that for every stratum N of 𝒳 the distance function to N is locally bi-Lipschitz trivial along N. The trivialization is obtained by integration of a Lipschitz vector field.