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-1
votes
1answer
51 views
Is it possible to find a formula for a set of number from the result? [closed]
I have these two sets of number, I also have a result. Is it possible to compute
the relation between them so that I can figure out how the result is generated ?
for example I have :
Set A=4 6 12 25 ...
2
votes
1answer
84 views
cholesky factorization of block matrices
I have a block matrix (either 2x2 blocks or 3x3 blocks) which is the covariance matrix for a joint space of two or three multivariate normal variables. ie
...
3
votes
2answers
200 views
Solving sparse matrix systems which can be reordered to block diagonal form
I have a class of matrices $A$ which are created by a domain decomposition method. Each matrix represents several subproblems of equal size, and I know that for some permutation matrix $P$,
$PAP^T$ ...
4
votes
2answers
180 views
What does symmetrize mean? (imposing multifreedom constraints to stiffness matrix)
I have a small FEM implementation program. And I want to add imposing multifreedom constraints (MFC) feature to it. The theory of master-slave method is given here (page 10 for general case).
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3
votes
1answer
172 views
Is a checkerboard block decomposition of a matrix useful when solving a linear system with a parallel conjugate gradient method?
According to these lecture notes, a checkerboard block decomposition should exhibit better scalability when applied to parallel matrix-vector multiplication (presumably because of greater cache hit ...
