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一类拟多项式倒数对振荡衰减型函数的逼近
Approximation of Quasi—rediprocals of Polynomials to the Oscillation Decay—type Functions
【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。
【Abstract】 In this paper,has been studied the optimal uniform approximation of the quasi— reciprocals 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.
【关键词】 最佳一致逼近;
拟多项式倒数;
振荡衰减型函数;
【Key words】 optimal umiform approximation; quasi—reciprocals of polynomials; oscillating decay—type function;
【Key words】 optimal umiform approximation; quasi—reciprocals of polynomials; oscillating decay—type function;
- 【文献出处】 现代电力 ,Modern Electric Power , 编辑部邮箱 ,1992年01期
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