摘要
利用扩展乘数法讨论了多元线性正算子改造为逼近多元无界连续函数的渐近估计 ,给出了具有一般性的渐近公式 作为实例 ,研究了多元非乘积型的Landau多项式算子逼近多元无界连续函数的渐近估计式 。
By using of the method of multiplier-enlargement,this paper discusses the asymptotic estimation of approximation of multivariate unbounded continuous functions with positive linear operators,and gives general asymptotic formulae.As an example,the asymptotic formulae of approximation of multivariate unbounded continuous functions with Landau operators are discussed and therefore some conclusions of professor Hsu Lizhi are generalized.
出处
《怀化学院学报》
2002年第5期6-8,共3页
Journal of Huaihua University
关键词
线性正算子
无界函数逼近
渐近估计
扩展乘数法
positive linear operators
approximation of multivariate unbounded functions
asymptotic formulae
method of multiplier-enlargement
