节点文献
L[0,1]p空间Müntz有理逼近的Jackson型估计
On Jackson Estimate for Miintz Rational Approximation in L~p_[0,1] Spaces
【摘要】 设A={λn}n=1∞为正的实数数列,且当n→∞时,有λn↘0.本文给出了当λn≤Mn-1/2,n=1,2,…,(其中M>0为一正常数)时Muntz系统{xλn}的有理函数在Lp[0,1]空间的逼近速度,主要结论为Rn(f,Λ)Lp≤CMω(f,n-1/2)Lp,1≤p≤∞.
【Abstract】 Let be a sequence of real numbers, andλn↘ 0 as n→∞. Suppose that for n = 1, 2,…, where M > 0 is an absolute constant. The present paper considers the Muntz rational approximation rate in L[0,1]p spaces and gets for 1≤p≤∞.
【基金】 the National Natural Science Foundation of China(10471130)
- 【文献出处】 数学研究与评论 ,Journal of Mathematical Research and Exposition , 编辑部邮箱 ,2007年01期
- 【分类号】O174.41
- 【被引频次】9
- 【下载频次】104