94-286 H.A. DZJUBENKO, V.V. LISTOPAD, I.A. SHEVCHUK
COMONOTONE APPROXIMATION POINTWISE ESTIMATES FOR TWICE DIFFERENTIABLE FUNCTIONS (47K, LaTex) Sep 19, 94
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Abstract. An estimate for polynomial approximation of a twice differentiable comonotone (i.e. piecewise-monotone) function is obtained in terms of $k-th$ modulus of continuity of the function in question.

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