广义Baskakov算子逼近的余项估计  

Estimation of remainders of approximation by using generalized Baskakov operator

作　　者：孔妮娜[1] 高义[1] 薛银川[2] 

机构地区：[1]北方民族大学信息与计算科学学院,宁夏银川750021 [2]宁夏大学数学计算机学院,宁夏银川750021

出　　处：《兰州理工大学学报》2008年第6期166-168,共3页Journal of Lanzhou University of Technology

摘　　要：引进广义Baskakov算子逼近的余项定义,针对三类不同的函数对该余项加以讨论,给出余项的三种估计形式.得到的结果更加广泛,此结果同时改进已有的关于广义Baskakov算子逼近度的定理,即给出更加精细的特征刻画.The definition of approximated remainders with generalized Baskakov operator was introduced, the remainders were discussed for three kinds of functions, and three forms of estimated remainders were obtained, so that the results became even more generalized. Meantime, the available theorem of approximation degree of generalized Baskakov operator was improved.

关 键 词：广义BASKAKOV算子 逼近 余项估计 

分 类 号：O174.41[理学—数学]