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该文利用修正的带权 K- 泛函K2σ f, t2)w,p, 考虑Gamma算子在Lp~ (1≤p ≤∞)空间带权同时逼近, 给出了它的 B -型强逆不等式. 相似文献
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利用K-泛函研究了修正的Baskakov型算子的Stechin-Marchaud型不等式,由此不等式,我们得到了关于ω2φλ的逆结果. 相似文献
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Recently some classical operator quasi-interpolants were introduced to obtain much faster convergence. A.T. Diallo investigated some approximation properties of Szasz-Mirakjan Quasi-Interpolants, but he obtained only direct theorem with Ditzian-Totik modulus wφ^2r (f, t). In this paper, we extend Diallo's result and solve completely the characterization on the rate of approximation by the method of quasi-interpolants to functions f ∈ CB[0, ∞) by making use of the unified modulus wφ^2r(f, t) (0≤λ≤ 1). 相似文献