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检索条件"作者=FANG Gensun and LONG Jingfan Received January30,2004"
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N-widths on the classes of multivariate bandlimited functions
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Progress in Natural Science:Materials International 2004年 第10期14卷 23-26页
作者： fang gensun and long jingfan (Department of Mathematics,Beijing Normal University,Beijing100875,China) received january30,2004 Beijing Normal Univ Dept Math Beijing 100875 Peoples R China
In this paper,the tight order on the n-widths of the classes of multivariate bandlimited functions in L p ( d ),1
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Entropy number and non-linear approximations on multivariate Besov space by manifolds of finite pseudo-dimension
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Progress in Natural Science:Materials International 2006年 第3期16卷 260-265页
作者： long jingfan and fang gensun (School of Mathematical Sciences, Beijing Normal University, Beijing 100875, China Department of Computer Science, Information Technology Institute, Beijing 100101, China) School of Mathematical Sciences Beijing Normal University Beijing 100875 China Department of Computer Science Information Technology Institute Beijing 100101 China
We determine the asymptotic order of entropy number and optimal non -linear approximations of anisotropic periodic Besov class of Bpθr(Td') (1≤p≤∞,1≤0≤∞) by manifolds of finite pseudo-dimension in the metric Lq... 详细信息
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AN APPLICATION OF THE SAMPLING THEOREM
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Analysis in Theory and Applications 1999年 第2期15卷 84-89页
作者： long jingfan (1) fang gensun (1) 1. Department of Mathematics Beijing Normal University 100875 Beijing PRC
Let Bσ,p,1 0$$ It is well known that the Shannon sampling theorem plays an important role in many applied fields [1,2,7]. In this paper we give an application of sampling theorem to approximation theory.
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