Characterization Theorem for Best Polynomial Spline Approximation with Free Knots, Variable Degree and Fixed Tails
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DOI: 10.1007/s10957-016-1048-1
Abstract: In this paper, we derive a necessary condition for a best approximation by piecewise polynomial functions of varying degree from one interval to another. Based on these results, we obtain a characterization theorem for the… read more here.
Keywords: spline approximation; approximation; characterization theorem; paper ... See more keywords