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Ulderique Demoitre's user avatar
Ulderique Demoitre's user avatar
Ulderique Demoitre's user avatar
Ulderique Demoitre
  • Member for 8 years, 9 months
  • Last seen more than 4 years ago
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Understanding canonical angles between two subspaces
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Doubt on the best low rank approximation of a symmetric tensor
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Unique solution to a matrix equations
Thanks, and how have you found $A$? Is there a general result that allows to find the solutions?
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Unique solution to a matrix equations
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Unique solution to a matrix equations
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SVD alternatives for symmetric matrices
@Paul Siegel, Any decomposition such that $A = E'E$ and $E \in \mathbb{R}^{k\times n}$, where $k$ is the rank of $A$
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SVD alternatives for symmetric matrices
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Perturbations on the pseudoinverse of a matrix
I also found here sciencedirect.com/science/article/pii/S0024379509005230 this bound on the norms that is nice: $$ ||f(\Delta)|| \leq \mu \max({{||A||_2}^2,{||A_p||_2}^2})||\Delta ||_2 $$ where $\mu$ is a constant
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Perturbations on the pseudoinverse of a matrix
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Perturbations on the pseudoinverse of a matrix
Thanks! If $A$ is full rank than $\Delta^\ast P=0$, correct? Do you have a reference for this?
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Perturbations on the pseudoinverse of a matrix
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Perturbations on the pseudoinverse of a matrix
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