Shape-preserving projections in low-dimensional settings and the q-monotone case von Prophet, M.P., Shevchuk, I.A.

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Are the degrees of the best (co)convex and unconstrained polynomial approximations the same? II von Korotun, K., Leviatan, D., Shevchuk, I.A.

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Coconvex Pointwise Approximation von Dzyubenko, G.A., Gilewicz, J., Shevchuk, I.A.

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