Grnwald插值算子的加权L_2收敛速度

ON THE RATE OF WEIGHTED L_2-CONVERGENCE OF GRNWALD INTERPOLATORY OPERATORS

完整地给出了以第二类 Tchebyshev多项式的零点为插值结点的Grünwald插值多项式于 L2 下的加权收敛速度估计 。

The paper gives completely the estimates of weighted L 2-convergence rate of Grünwald interpolatory operators based on the Tchebyshev nodes of second kind.Furthermore, it is proved that the estimates are exact.