Almost coconvex approximation of continuous periodic functions by Dzyubenko, H. A., Дзюбенко, Г. А.

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Pointwise estimation of an almost copositive approximation of continuous functions by algebraic polynomials by Dzyubenko, H. A., Дзюбенко, Г. А.

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Comonotone approximation of twice differentiable periodic functions by Dzyubenko, H. A., Дзюбенко, Г. А.

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Pointwise estimation of comonotone approximation by Dzyubenko, H. A., Дзюбенко, Г. А.

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Copositive pointwise approximation by Dzyubenko, H. A., Дзюбенко, Г. А., Дзюбенко, Г. А.

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Pointwise Estimates for the Coconvex Approximation of Differentiable Functions by Dzyubenko, H. A., Zalizko, V. D., Дзюбенко, Г. А., Залізко, В. Д.

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Coconvex Approximation of Functions with More than One Inflection Point by Dzyubenko, H. A., Zalizko, V. D., Дзюбенко, Г. А., Залізко, В. Д.

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Coconvex Pointwise Approximation by Dzyubenko, H. A., Gilewicz, J., Shevchuk, I. A., Дзюбенко, Г. А., Гілевич, Я. Я., Шевчук, І. О.

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Uniform estimates for monotonic polynomial approximation by Dzyubenko, H. A., Listopad, V. V., Shevchuk, I. A., Дзюбенко, Г. А., Листопад, В. В., Шевчук, И. А., Дзюбенко, Г. А., Листопад, В. В., Шевчук, И. А.

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