In this article we consider the generalized shift operator defined byon compact group G and by help of this operator we define 'Spherical' modulus of continuity. So we prove Stechkin and Jackson type theorems.
基金This research has been supported by the Research Institute for Fundamental Sciences, Tabriz, I-ran.
文摘In this article we consider the generalized shift operator defined byon compact group G and by help of this operator we define 'Spherical' modulus of continuity. So we prove Stechkin and Jackson type theorems.
