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3
votes
1answer
179 views
Unstable linear inverse problem: which “dampening” Tikhonov matrix should I use?
A linear inverse problem is given by:
$\ \mathbf{d}=\mathbf{A}\mathbf{m}+\mathbf{e}$
where d: observed data, A: theory operator, m: unknown model and e: error.
The Least Square Error (LSE) model ...
2
votes
2answers
78 views
Have spd $(A^TA)$ and $(B^TB)$, need $A^TB$.
Given two symmetric positive definite matrices $(A^TA)$ and $(B^TB)$ I need to compute $A^TB$.
$A$ and $B$ are not given directly.
$(A^TA)$ and $(B^TB)$ have the same dimensions. $A$ and $B$ are ...
