Chen

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17 Questions

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7	Why would $(A^{\text T}A+\lambda I)^{-1}A^{\text T}$ be close to $A^{\dagger}$ when $A$ is with rank deficiency?
3	is a semirecursive (recursively semidecidable) set enumerable?
2	prove that $ \lim_{t\rightarrow \infty}(X(t) - A^{-1}(t)) = 0 $
2	Can we assume left and right pseudo-inverse to be close enough?
2	What is the transformation representation/interpretation of symmetric matrices?

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137 Reputation

+5	Why would $(A^{\text T}A+\lambda I)^{-1}A^{\text T}$ be close to $A^{\dagger}$ when $A$ is with rank deficiency?
+5	How to simplfy $\frac{\|Ax\|}{\|x\|}$
+5	Necessary and sufficient condition for $q(t)/p(t)$ to be Lipchitz continuous
+5	Stability analysis $\dot{x}=-\gamma x + \alpha$

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1 Answer

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0	How do I setup a proof using contradiction.

29 Tags

0 matrices × 7	0 probability × 2
0 linear-algebra × 7	0 control-theory × 2
0 functional-analysis × 3	0 real-analysis × 2
0 differential-equations × 3	0 proof-writing × 2
0 dynamical-systems × 3	0 elementary-number-theory

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$Mathematics Stack Exchange$	Mathematics	137 rep	6
	Stack Overflow	6 rep	2
	Cross Validated	1 rep
$TeX - LaTeX Stack Exchange$	TeX - LaTeX	1 rep
	English Language & Usage	1 rep

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