gTcV

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matrix-factorization

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11 Questions

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answers

views

Nonsymmetric permutations for LU factorisation of symmetric matrix

sparse-matrix matrix-factorization

Feb 15 at 2:49 gTcV 405

votes

answers

views

Does incomplete LU preconditioning improve the asymptotic scaling of Krylov subspace methods?

preconditioning matrix-factorization krylov-method

Nov 24 '20 at 2:46 gTcV 405

vote

answer

144

views

Classical vs. modified Gram-Schmidt

matrix-factorization

Aug 23 '19 at 9:06 gTcV 405

votes

answer

520

views

Givens rotation vs 2x2 Householder reflection

matrix-factorization

Jan 12 at 22:09 Federico Poloni 8,041

vote

answer

125

views

Software for parallel incomplete LU factorisation

sparse-matrix software matrix-factorization

Aug 5 '19 at 0:25 Anton Menshov♦ 8,005

votes

answers

173

views

1+x not backwards stable?

stability

Dec 2 '18 at 17:07 Kirill 11.4k

votes

answers

views

Reduction of linear system with decaying unknown

wavelet

Mar 13 '18 at 22:52 gTcV 405

vote

answers

views

BLAS3 in Multifrontal Sparse Decomposition

sparse-matrix

Apr 14 '17 at 16:31 gTcV 405

vote

answer

189

views

Difference between explicit and implicit preconditioning

linear-solver iterative-method preconditioning

Sep 11 '16 at 7:40 gTcV 405

vote

answer

views

Householder QR for abstract vectors

matrix-factorization

Aug 18 '16 at 23:59 Geoff Oxberry 29.5k

votes

answers

views

Preconditioning matrix with known spectrum

linear-solver eigenvalues preconditioning

Aug 14 '16 at 11:29 gTcV 405

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11 Questions

Nonsymmetric permutations for LU factorisation of symmetric matrix

Does incomplete LU preconditioning improve the asymptotic scaling of Krylov subspace methods?

Classical vs. modified Gram-Schmidt

Givens rotation vs 2x2 Householder reflection

Software for parallel incomplete LU factorisation

1+x not backwards stable?

Reduction of linear system with decaying unknown

BLAS3 in Multifrontal Sparse Decomposition

Difference between explicit and implicit preconditioning

Householder QR for abstract vectors

Preconditioning matrix with known spectrum