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Optimal Approximation by Blaschke Forms and Rational Functions ∗ (2011)
by
Tao Qian
,
Elias Wegert
| Citations: | 1 - 1 self |
BibTeX
@MISC{Qian11optimalapproximation,
author = {Tao Qian and Elias Wegert},
title = {Optimal Approximation by Blaschke Forms and Rational Functions ∗},
year = {2011}
}
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Abstract
AbstractWe study best approximation to functions in Hardy H2(D) by two classes of functions of which one is n-partial fractions with poles outside the closed unit disc and the other is n-Blaschke forms. Through the equal relationship between the two classes we obtain the existence of the minimizers in both classes. The algorithm for the minimizers for small orders are practical.
