Abstract
The paper centers around a pair of sequences of linear positive operators. The former has the degree of exactness one and the latter has its degree of exactness null, but, as a novelty, it reproduces the third test function of Korovkin theorem. Quantitative estimates of the rate of convergence are given in different function spaces traveling from classical approximation to approximation in abstract spaces. Particular classes are also studied.
Funder
Consiliul National al Cercetarii Stiintifice
Subject
Mathematics (miscellaneous)
Reference9 articles.
1. de Gruyter Studies in Mathematics,1994
Cited by
13 articles.
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