节点文献
用多重Fourier级数的一种球形线性平均逼近周期函数
APPROXIMATION OF FUNCTIONS BY CERTAIN SPHERICAL LINEAR MEANS OF MULTIPLE FOURIER SERIES
【摘要】 本文考虑多元周期连续函数 f 用线性平均σ_R~α(f)=1/R integral from 0 to R S_r~α(f)dr(α>(k-3)/2,R>0)逼近的问题,对相应的共轭情形也进行了研究。
【Abstract】 The approximation problem for f∈C(Q)by the quantity is considered,where S_r~a (f;x)are the Bochner-Riesz means of its Fourier series.The corresponding problem in the case of the conjugate Fourier series is also considered.
- 【文献出处】 北京师范大学学报(自然科学版) ,Journal of Beijing Normal University(Natural Science) , 编辑部邮箱 ,1985年03期
- 【被引频次】2
- 【下载频次】23