研究了以Baskakov和Beta为基函数的一类和积分型混合算子,得到了在Lp(1≤p≤∞)空间逼近的正、逆定理以及等价定理.利用统一光滑模ω2λφ(f,t)(0≤λ≤1),得到了点态逼近的等价定理.%The mixed summation-integral type operators having Baskakov and Beta basis functions are studied. The direct, converse and equivalence theorems in the Lp(1≤p≤∞) spaces are obtained. Using the unified smooth modulus ωφλ (f, t) (O≤A≤1) , the pointwise approximation equivalence theorems are also gotten.
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