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arXiv · 2012.06184

Pseudo-hyperbolic distance and n-best rational approximation in H^2 space

Tao Qian·Yan-Bo Wang
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Abstract

Through reducing the problem to rational orthogonal system (Takenaka-Malmquist system), this note gives a proof for existence of n-best rational approximation to functions in the Hardy H2(D) space by using pseudohyperbolic distance.

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Tao Qian, Yan-Bo Wang. 2020-12-11. Pseudo-hyperbolic distance and n-best rational approximation in H^2 space. https://doi.org/10.1002/mma.7267

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