An analog of the theorem of D. Jackson on the approximation of periodic functions by means of trigonometric polynomials is established for some Hardy spaces of several variables. © 1987.
Colzani, L. (1987). Jackson theorems in Hardy spaces and approximation by Riesz means. JOURNAL OF APPROXIMATION THEORY, 49(3), 240-251 [10.1016/0021-9045(87)90101-8].
Jackson theorems in Hardy spaces and approximation by Riesz means
COLZANI, LEONARDO
1987
Abstract
An analog of the theorem of D. Jackson on the approximation of periodic functions by means of trigonometric polynomials is established for some Hardy spaces of several variables. © 1987.
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