Geodesic
Estimate of polynomial approximations of bounded functions with weight
Daghestan Electronic Mathematical Reports, Tome 2 (2014), pp. 38-44.

Voir la notice de l'article provenant de la source Math-Net.Ru

The open problem about the structural characteristic of bounded functions is solved for estimate of their best polynomial approximations in the metric of bounded sign-sensitive weight.
Keywords: sign-sensitive weight, polynomial approximations, bounded functions. 
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A.-R. K. Ramazanov. Estimate of polynomial approximations of bounded functions with weight. Daghestan Electronic Mathematical Reports, Tome 2 (2014), pp. 38-44. http://geodesic.mathdoc.fr/item/DEMR_2014_2_a2/

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