节点文献
Fourier级数的求和理论与方法—求和因子法求和
On Summation Theory and Method of Fourier Series—Summing by Summation Factor
【摘要】 在 Fourier级数的线性求和中 ,通过构造求和因子 ,使得带有该求和因子的积分算子在全轴上一致地收敛到每个以 2 π为周期的连续函数 ,并对 Cj2π(0 j r)函数类的逼近均达到最佳收敛阶 ,参数 r为任意给定的奇自然数 .
【Abstract】 In the computation of linear summation of Fourier series, a summation factor is constructed. Therefore the integral operator with the factor converges uniformly on (-∞, +∞) for any f(x)∈C j_ 2π (0jr), and has the best approximation order if the function f(x)∈C j_ 2π , where is an odd natural number.
【关键词】 Fourier级数;
Rogosinski核函数;
求和因子;
一致收敛;
最佳收敛阶;
【Key words】 fourier series; rogosinski kernel function; summation factor; uniform convergence; the best convergence order;
【Key words】 fourier series; rogosinski kernel function; summation factor; uniform convergence; the best convergence order;
- 【文献出处】 数学的实践与认识 ,Mathematics In Practice and Theory , 编辑部邮箱 ,2003年12期
- 【分类号】O173
- 【被引频次】7
- 【下载频次】262