利用新的Ditzian光滑模和统一型K泛函导出了Szász概率型算子的强逆不等式,推广了Ditzian-Ivanov和Totik的相关结果,常数估计更加精确.
The purpose of this paper is to derive a more precise estimate of the strong converse inequality of Ditzian-Ivanov and Totik for Szdsz probabilistic operators by new Ditzian modulus of continuity and united Kfunctional.