All Questions
Tagged with matrix-equations linear-solver
4 questions
0
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Developing a poisson equation solver for arbitrary input geometry and boundary conditions
I need to develop a Poisson equation solver that can take a input geometry and boundary conditions, produces a FEM mesh, generates the matrices and solve it. Problem is I want a solver that can use ...
- 101
3
votes
1
answer
118
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Solving for $X$ in $\sum_{a,b} b a^T b^T X a = Y$
Suppose I have $k$ pairs of $(a,b)$ where $a$ and $b$ are vectors in $\mathbb{R}^d$, $Y$ is $d\times d$ and I need least squares solution for $X$ in the following
$$\sum_{(a,b)}^k b a^T (b^T X a) = Y$...
- 2,799
2
votes
1
answer
54
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Solving MX=N where M is structured as a Gaussian 4th-moment tensor
I'm looking to solve numerically the following equation for $(d,d)$ variable $X$, in Einstein summation notation
$$M_{ijkl}X_{kl}=N_{ij}$$
Where $M$ is a $(d,d,d,d)$ 4th-moment tensor of random ...
- 2,799
1
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0
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278
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implementation for coppersmith matrix multiplication
Is there any online implementation for the coppersmith matrix multiplication I have searched alot but can not find any? and if there is not any why is that Isn't this algotithm much faster than ...
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