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[Bhatia.Matrix Analysis.Solutions to Exercises and Problems]ExI.4.6
Let $A$ and $B$ be two matrices (not necessarily of the same size). Relative to the lexicographically ordered basis on the space of tensors, the matri...
分类:其他好文   时间:2014-11-19 18:20:50    阅读次数:142
[Bhatia.Matrix Analysis.Solutions to Exercises and Problems]ExI.4.4
(1). There is a natural isomorphism between the spaces $\scrH\otimes \scrH^*$ and $\scrL(\scrH,\scrK)$ in which the elementary tensor $k\otimes h^*$co...
分类:其他好文   时间:2014-11-19 18:05:06    阅读次数:326
[Bhatia.Matrix Analysis.Solutions to Exercises and Problems]ExI.4.5
Suppose it is known that $\scrM$ is an invariant subspace for $A$. What invariant subspaces for $A\otimes A$ can be obtained from this information alo...
分类:其他好文   时间:2014-11-19 17:55:24    阅读次数:191
数学专业英语词汇
1概率论与数理统计词汇英汉对照表Aabsolutevalue绝对值accept接受acceptableregion接受域additivity可加性adjusted调整的alternativehypothesis对立假设analysis分析analysisofcovariance协方差分析analysisofvariance方差分析arithmeticmean算术平均值association相关性assump..
分类:其他好文   时间:2014-11-19 16:22:19    阅读次数:256
收集点小文,讲CGI,FASTCGI,PHP-CGI,PHP-FPM之间通透点的文章
http://blog.csdn.net/meegomeego/article/details/36180343http://www.opsers.org/linux-home/server/php-fpm-on-analysis-of-system-resources.html首先,CGI是干嘛的...
分类:Web程序   时间:2014-11-19 13:51:36    阅读次数:197
SQL Server Analysis Services 数据挖掘
假如你有一个购物类的网站,那么你如何给你的客户来推荐产品呢?这个功能在很多电商类网站都有,那么,通过SQL Server Analysis Services的数据挖掘功能,你也可以轻松的来构建类似的功能。将分为三个部分来演示如何实现这个功能。构建挖掘模型为挖掘模型编写服务接口开发简单的前端应用此篇介...
分类:数据库   时间:2014-11-19 12:06:19    阅读次数:231
[Bhatia.Matrix Analysis.Solutions to Exercises and Problems]ExI.3.6
If $A$ is a contraction, show that $$\bex A^*(I-AA^*)^{1/2}=(I-A^*A)^{1/2}A^*. \eex$$ Use this to show that if $A$ is a contraction on $\scrH$, then t...
分类:其他好文   时间:2014-11-19 00:10:53    阅读次数:315
[Bhatia.Matrix Analysis.Solutions to Exercises and Problems]ExI.3.1
Let $A=A_1\oplus A_2$. Show that (1). $W(A)$ is the convex hull of $W(A_1)$ and $W(A_2)$; i.e., the smallest convex set containing $W(A_1)\cup...
分类:其他好文   时间:2014-11-19 00:04:31    阅读次数:272
[Bhatia.Matrix Analysis.Solutions to Exercises and Problems]ExI.3.7
For every matrix $A$, the matrix $$\bex \sex{\ba{cc} I&A\\ 0&I \ea} \eex$$ is invertible and its inverse is $$\bex \sex{\ba{cc} I&-A\\ 0&I \ea}. \eex$...
分类:其他好文   时间:2014-11-18 23:49:24    阅读次数:217
[Bhatia.Matrix Analysis.Solutions to Exercises and Problems]ExI.2.9
(1). When $A$ is normal, the set $W(A)$ is the convex hull of the eigenvalues of $A$. For nonnormal matrices, $W(A)$ may be bigger than the convex hul...
分类:其他好文   时间:2014-11-18 23:41:26    阅读次数:243
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