Anal. Theory Appl., 31 (2015), pp. 354-372.
Published online: 2017-10
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In this paper the author writes a simple characterization for the best copositive approximation to elements of $C(Q)$ by elements of finite dimensional strict Chebyshev subspaces of $C(Q)$ in the case when $Q$ is any compact subset of real numbers. At the end of the paper the author applies this result for different classes of $Q$.
}, issn = {1573-8175}, doi = {https://doi.org/10.4208/ata.2015.v31.n4.2}, url = {http://global-sci.org/intro/article_detail/ata/4644.html} }In this paper the author writes a simple characterization for the best copositive approximation to elements of $C(Q)$ by elements of finite dimensional strict Chebyshev subspaces of $C(Q)$ in the case when $Q$ is any compact subset of real numbers. At the end of the paper the author applies this result for different classes of $Q$.