二元积分型Jackson插值算子在Orlicz空间中的收敛阶

摘要

This paper introduces a kind of bivariate integral trigonometrical interpolating polynomials,proves its boundedness in orlicz spaces and gives the quantwative estimate degree of approximation in orlicz norm,As application,the degree of approximation by a kind of bivariate integral Hermite-Fejer interpolating operators is given in the weight orlicz spaces.