Journal of the London Mathematical Society 1988 s2-37(3):455-463; doi:10.1112/jlms/s2-37.3.455
© 1988 by London Mathematical Society
© Oxford University Press
Weighted Polynomial Approximation of Analytic Functions
E. B. Saff and
V. Totik
Institute for Constructive Mathematics, Department of Mathematics, University of South Florida Tampa, Florida 33620, USA
Bolyai Institute Szeged, Aradi V. tere 1, 6720, Hungary
Received 8 April 1987.
A necessary and sufficient condition is given for a weight such that the geometric order of weighted polynomial approximation of a function f is equivalent to the analyticity of f.

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