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可乘性组合逼近的一个下界

A Lower-Bound of Multiplicative Combination Approximation
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摘要 利用有界线性算子矩阵分块的技巧,给出了与Hilbert空间中两个子空间有关的可乘性组合逼近及至其上正交投影误差的一个下界.结果表明,下界可以达到. By means of block-operator matrices of bounded linear operators on a Hilbert space,we gave a lower-bound on a multiplicative combination approximation associated with the two subspaces of a Hilbert space,which can reach the lower-bound of the error.
出处 《吉林大学学报(理学版)》 CAS CSCD 北大核心 2014年第3期499-502,共4页 Journal of Jilin University:Science Edition
基金 国家自然科学基金(批准号:11171197)
关键词 子空间 正交投影 可乘性组合逼近 subspace orthogonal projection multiplicative combination approximation
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参考文献7

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