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math.CA2015
Quantitative estimates in approximation by Bernstein-Durrmeyer-Choquet operators with respect to monotone and submodular set functions
Sorin Gal
For the qualitative results of pointwise and uniform approximation obtained in \cite{Gal-Opris}, we present general quantitative estimates in terms of the modulus of continuity and…
math.CA2015
On the Bernstein's constant in convex approximation
Sorin G. Gal
Denoting by the best uniform approximation of by convex polynomials of degree , there is an open question if there exists the limit $\lim_{n\to \infty}…