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A Robust Incomplete Factorization Preconditioner for Positive Definite Matrices.
We describe a novel technique for computing a sparse incomplete factorization of a general symmetric positive definite matrix A. The factorization is not based, the incomplete factorization always exists a...
BA - Obecná matematika
- 2003 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
The Importance of Structure in Incomplete Factorization Preconditioners
In this paper, we consider level-based preconditioning, which is one of the basic approaches to incomplete factorization preconditioning of iterative methods that the use of variable levels of fill can yield incomplete Chol...
BA - Obecná matematika
- 2011 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
A Robust Preconditioner with Low Memory Requirements for Large Sparse Least Squares Problems.
This paper describes a technique for constructing robust preconditioners for the CGLS method applied to the solution of large and sparse least squares problems. The algorithm computes an incomplete LDLT factorization of the normal e...
BA - Obecná matematika
- 2003 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
HSL_MI28 Symmetric system: incomplete Cholesky factorization
of Lin and Moré. Both the sparsity density of the incomplete factor and the amountThis code represents a new robust and efficient general-purpose incomplete Cholesky factorization package HSL_MI28, which is availa...
IN - Informatika
- 2013 •
- R •
- Link
Rok uplatnění
R - Software
Výsledek na webu
HSL MI28: An Efficient and Robust Limited-Memory Incomplete Cholesky Factorization Code
This paper focuses on the design and development of a new robust and efficient general-purpose incomplete Cholesky factorization package HSL MI28, which is available-used ICFS algorithm of Lin and Moré. Both the density of the i...
IN - Informatika
- 2014 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
Improved Balanced Incomplete Factorization
factors (direct factors) of a given matrix and their inverses (inverse factors reformulation of the basic algorithm implies that the direct and inverse factors numerically influence each other even without any dro...
BA - Obecná matematika
- 2010 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
On Signed Incomplete Cholesky Factorization Preconditioners for Saddle-Point Systems
Limited-memory incomplete Cholesky factorizations can provide robust preconditioners for sparse symmetric positive-definite linear systems. In this paper-point form.A limited-memory signed incomplete Cholesky factorizat...
BA - Obecná matematika
- 2014 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
Incomplete Block Factorizations Applied to the Biconjugate Gradient Method
BA - Obecná matematika
- 1996 •
- X
Rok uplatnění
X - Nezařazeno
Avoiding Breakdown in Incomplete Factorizations in Low Precision Arithmetic
sparse systems using incomplete factorization preconditioners. The focus problems, incomplete factorizations can break down when small entries occur on the diagonal during the factorization. When using ha...
Applied mathematics
- 2024 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Conjugate gradient method preconditioned by incomplete Choleski block factorization
BA - Obecná matematika
- 1994 •
- X
Rok uplatnění
X - Nezařazeno
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