Geodesic
On strong approximation of functions by positive operators
Zapiski Nauchnykh Seminarov POMI, Analytical theory of numbers and theory of functions. Part 30, Tome 440 (2015), pp. 68-80 Cet article a éte moissonné depuis la source Math-Net.Ru

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We consider questions of strong approximation of continuous functions by positive operators. The estimations are established in the terms of modulus of continuity and its convex majorant. 
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V. V. Zhuk. On strong approximation of functions by positive operators. Zapiski Nauchnykh Seminarov POMI, Analytical theory of numbers and theory of functions. Part 30, Tome 440 (2015), pp. 68-80. http://geodesic.mathdoc.fr/item/ZNSL_2015_440_a5/

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