Results 1 to 10 of about 434,100 (202)

A numerical evaluation of preprocessing and ILU-type preconditioners for the solution of unsymmetric sparse linear systems using iterative methods

open access: greenACM Transactions on Mathematical Software, 2009
Recent advances in multilevel LU factorizations and novel preprocessing techniques have led to an extremely large number of possibilities for preconditioning sparse, unsymmetric linear systems for solving with iterative methods. However, not all combinations work well for all systems, so making the right choices is essential for obtaining an efficient ...
Jan Mayer
semanticscholar   +4 more sources

Convergence of block iterative methods for linear systems arising in the numerical solution of Euler equations [PDF]

open access: closedNumerische Mathematik, 1991
The authors discuss certain block matrices that are natural block- generalizations of \(Z\)-matrices and \(M\)-matrices and arise in the numerical solution of Euler equations in the area of computational fluid mechanics. They investigate the properties of such matrices and, in particular, give a proof for the convergence of block iterative methods for ...
Elsner, Ludwig, Mehrmann, Volker
semanticscholar   +4 more sources

On parallel multisplitting block iterative methods for linear systems arising in the numerical solution of Euler equations [PDF]

open access: greenJournal of Computational and Applied Mathematics, 2015
The paper studies the convergence of some parallel multisplitting block iterative methods for the solution of linear systems arising in the numerical solution of Euler equations. Some sufficient conditions for convergence are proposed. As special cases the convergence of the parallel block generalized AOR (BGAOR), the parallel block AOR (BAOR), the ...
Zhang, Cheng-yi   +2 more
  +6 more sources

Iterative solution of shifted positive-definite linear systems arising in a numerical method for the heat equation based on Laplace transformation and quadrature [PDF]

open access: bronzeANZIAM Journal, 2011
AbstractIn earlier work we have studied a method for discretization in time of a parabolic problem, which consists of representing the exact solution as an integral in the complex plane and then applying a quadrature formula to this integral. In application to a spatially semidiscrete finite-element version of the parabolic problem, at each quadrature ...
Mclean, William, Thomée, Vidar
  +5 more sources

Variational iterative method: an appropriate numerical scheme for solving system of linear Volterra fuzzy integro-differential equations [PDF]

open access: goldAdvances in Difference Equations, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
S. Narayanamoorthy, S. Mathankumar
openaire   +3 more sources

Teaching and learning iterative methods for solving linear systems using symbolic and numeric software [PDF]

open access: closedComputer Applications in Engineering Education, 2002
AbstractAn integral approach is presented to strengthen the teaching and learning processes in the environment of the undergraduate course Numerical Analysis (NA) for engineering, examining tha advantages of combining the symbolic and numeric paradigms.
E. A. Cariaga, M. C. Nualart
openaire   +2 more sources

Iterative learning control for constrained linear systems [PDF]

open access: yesInternational Journal of Control, 2009
This paper considers iterative learning control for linear systems with convex control input constraints. First, the constrained ILC problem is formulated in a novel successive projection framework.
B. Chu, D. Owens
semanticscholar   +3 more sources

Numerical Investigation of Preconditioning for Iterative Methods in Linear Systems Obtained by Extended Element-Free Galerkin Method

open access: diamondJournal of Advanced Simulation in Science and Engineering, 2016
Taku Itoh   +3 more
openaire   +3 more sources

Monolithic, non-iterative and iterative time discretization methods for linear coupled elliptic-parabolic systems

open access: yesGAMM Archive for Students, 2022
We compare four numerical methods for the time discretization of linear coupled elliptic-parabolic systems. The monolithic method arising from an implicit Euler discretization is the primary method for solving the coupled system.
A. Mujahid
semanticscholar   +1 more source

On the strong P-regular splitting iterative methods for non-Hermitian linear systems

open access: yesAIMS Mathematics, 2021
The strong P-regular splitting is put forward and defined for iterative methods of non-Hermitian linear systems in the paper. The strong P-regular splitting combining SOR iterative methods and relaxed SOR iterative methods are established, and conditions
Junxiang Lu, Chengyi Zhang
doaj   +1 more source

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