JuanMuñoz

# 29 Questions

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### How to prove that if $MM^TU=U\Sigma^2$ and $M^TMV=V\Sigma^2$ then $U$ and $V$ are orthogonal?

Jun 14 at 6:48 JuanMuñoz 290

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### How to obtain the derivative of a green function with corrector

Nov 3 at 19:06 develarist 918

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### How to perform by hand a full linear QR decomposition in the matrix A

Aug 25 at 10:14 JuanMuñoz 290

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### Show that: if $Cond_2(A)=1$ then $A=\alpha Q$; where $Q$ is an orthonormal matrix and $\alpha$ is a real number $\neq 0$

Aug 17 at 18:05 JuanMuñoz 290

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### What is the $2-norm$ relative Condition Number of $f$ with respect to pertubations of x. If $f(x)=||x||_2^2$ for $x \in \mathbb{R}$,

Jul 13 at 17:50 JuanMuñoz 290

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### How to prove that $U$ and $V$ are orthogonal?. If, $MM^TU=U\Sigma^2$ and $M^TMV=V\Sigma^2$ then

Jun 14 at 14:04 JuanMuñoz 290

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### Where to find reference for the energy method $\lambda u- \Delta u=f(x) \hspace{1cm} x \in \Omega, \hspace{1cm}$

May 31 at 9:38 JuanMuñoz 290

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