On Copositive Approximation in Spaces of Continuous Functions II: The Uniqueness of Best Copositive Approximation
Year: 2016
Analysis in Theory and Applications, Vol. 32 (2016), Iss. 1 : pp. 20–26
Abstract
This paper is part II of "On Copositive Approximation in Spaces of Continuous Functions". In this paper the author shows that if $Q$ is any compact subset of real numbers, and $M$ is any finite dimensional strict Chebyshev subspace of $C(Q)$, then for any admissible function $f\in C(Q)\backslash M,$ the best copositive approximation to $f$ from $M$ is unique.
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Journal Article Details
Publisher Name: Global Science Press
Language: English
DOI: https://doi.org/10.4208/ata.2016.v32.n1.2
Analysis in Theory and Applications, Vol. 32 (2016), Iss. 1 : pp. 20–26
Published online: 2016-01
AMS Subject Headings: Global Science Press
Copyright: COPYRIGHT: © Global Science Press
Pages: 7
Keywords: Strict Chebyshev spaces best copositive approximation change of sign.