Let $A$ be a nilpotent operator. Show how to obtain, from aJordan basis for $A$, aJordan basis of $\wedge^2A$.
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其他好文 时间:
2014-11-21 10:37:06
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160
Multivariable normal distribution is a positive definite matrix.
We can get (assume) Where
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2014-11-21 10:34:59
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157
Multivariable normal distribution is a positive definite matrix.
We can get (assume) Where
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其他好文 时间:
2014-11-21 10:31:19
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209
You are given annxn2D matrix representing an image.Rotate the image by 90 degrees (clockwise).Follow up:Could you do this in-place?C++实现代码:#include#in...
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2014-11-21 10:28:47
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294
Let $\scrM$ be a $p$-dimensional subspace of $\scrH$ and $\scrN$ its orthogonal complement. Choosing $j$ vectors from $\scrM$ and $k-j$ vectors from $...
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2014-11-21 10:24:43
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159
If $\dim \scrH=3$, then $\dim \otimes^3\scrH =27$, $\dim \wedge^3\scrH =1$ and $\dim \vee^3\scrH =10$. In terms of an orthonormal basis of $\scrH$, wr...
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2014-11-21 10:24:21
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121
Prove that for any vectors $$\bex u_1,\cdots,u_k,\quad v_1,\cdots,v_k, \eex$$ we have $$\bex |\det(\sef{u_i,v_j})|^2 \leq \det\sex{\sef{u_i,u_j}}\cdot...
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2014-11-21 10:21:56
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155
Show that the inner product $$\bex \sef{x_1\vee \cdots \vee x_k,y_1\vee \cdots\vee y_k} \eex$$ is equal to the permanent of the $k\times k$ matrix $\s...
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其他好文 时间:
2014-11-21 10:20:49
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259
ProblemGiven aNXN matrix, starting from the upper right corner of the matrix start printingvalues in a counter-clockwise fashion. E.g.: Consider N = 4...
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2014-11-21 10:20:38
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179
The elementary tensors $x\otimes \cdots \otimes x$, with all factors equal, are all in the subspace $\vee^k\scrH$. Do they span it?
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其他好文 时间:
2014-11-21 10:18:30
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134