Summary
In this paper an alternation theorem is developed for approximating with functions having restricted ranges where equality is allowed to occur between the restraining curves.
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References
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Supported in part by NSF grant GP-7624.
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Taylor, G.D. Approximation by functions having restricted ranges: Equality case. Numer. Math. 14, 71–78 (1969). https://doi.org/10.1007/BF02165100
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DOI: https://doi.org/10.1007/BF02165100