摘要
本文研究了在区间[0,∞)上,一类振荡衰减型函数用形如 B(x)/P^k(x)的拟多项式例数的最佳一致逼近问题,给出了逼近的存在性定理,特征定理和唯一性推论。
In this paper,has been studied the optimal uniform approximation of the quasireciprocals of polynomials in the form of B(x)/Pk(x)to the 1st group oscillating decay —type functipn within[0,∞].The existence,characterixation and uniqueness of this approximation are also shown.
出处
《南昌航空工业学院学报》
CAS
1992年第1期32-38,共7页
Journal of Nanchang Institute of Aeronautical Technology(Natural Science Edition)
关键词
最佳一致逼近
拟多项式倒数
函数
optimal umiform approximation
quasi-reciprocals of polynomials
oscillating decay—type function