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arXiv · 2004.06415

Exterior products of operators and superoptimal analytic approximation

Dimitrios Chiotis·Zinaida Lykova·Nicholas Young
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Abstract

We give a new algorithm for the construction of the unique superoptimal analytic approximant of a given continuous matrix-valued function on the unit circle, making use of exterior powers of operators in preference to spectral or {\em Wiener-Masani} factorizations.

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Dimitrios Chiotis, Zinaida Lykova, Nicholas Young. 2020-04-14. Exterior products of operators and superoptimal analytic approximation. https://arxiv.org/abs/2004.06415

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