The faber operator
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The boundedness of the Faber operator T and its inverse T−1, considered as mappings between various spaces of functions, is discussed. The relevance of this to problems of approximation, by polynomials or by rational functions, to functions defined on certain compact subsets of ¢ is explained.
KeywordsRational Approximation Besov Space Jordan Curve Supremum Norm Hankel Operator
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