Title of article
Approximation by certain linear operators preserving x^2
Author/Authors
Rempulska, Lucyna Poznan University of Technology - Institute of Mathematics, POLAND , Tomczak, Karolina Poznan University of Technology - Institute of Mathematics, POLAND
From page
273
To page
281
Abstract
We investigate certain positive linear operators Ln preserving the functions ek(x) = x^k , k = 0, 1, and modified operators L ∗ n which preserve e0 and e2 . We show that the error of approximation of f by L ∗ n(f) is smaller than for Ln(f).
Keywords
Positive linear operator , polynomial weighted space , degree of approximation
Journal title
Turkish Journal of Mathematics
Journal title
Turkish Journal of Mathematics
Record number
2530852
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