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On the distribution of the points of Chebyshev alternation with applications to strong unicity constants

✍ Scribed by H. -P. Blatt

Publisher
Akadmiai Kiad
Year
1990
Tongue
English
Weight
315 KB
Volume
55
Category
Article
ISSN
1588-2632

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When two or more branches of a function merge, the Chebyshev series of u(Ξ») will converge very poorly with coefficients a n of T n (Ξ») falling as O(1/n Ξ± ) for some small positive exponent Ξ±. However, as shown in [J.P. Boyd, Chebyshev polynomial expansions for simultaneous approximation of two branc