Baskakov算子线性组合加Jacobi权逼近及高阶导数的正逆定理

王建军;徐宗本

Direct and Inverse Approximation Theorems with Jacobi Weight forCombinations and Higher Derivatives of Baskakov Operators

WANG Jianjun;XU Zongben

系统科学与数学 . 2008, (1): 30 -039 . DOI: 10.12341/jssms10040