Results 251 to 260 of about 1,481 (288)
Some of the next articles are maybe not open access.
Incomplete Block Cyclic Reduction as a Preconditioner for Polynomial Iterative Methods
SIAM Journal on Scientific and Statistical Computing, 1990Preconditionings based on incomplete block odd-even cyclic reduction for the Chebyshev and conjugate gradient polynomial iterative methods have been shown to be effective for accelerating the convergence of the solution of linear systems that arise from discrete approximations of elliptic partial differential equations.
openaire +1 more source
International Journal of Geomechanics, 2016
AbstractBecause most geotechnical analyses may involve elastoplastic geomaterials, a robust solution scheme is of critical importance to the efficiency of the entire finite-element (FE) computation. To accelerate the Krylov subspace iterative methods, some preconditioning techniques have been developed based on the factorization of elastic stiffness ...
Xi Chen +3 more
openaire +1 more source
AbstractBecause most geotechnical analyses may involve elastoplastic geomaterials, a robust solution scheme is of critical importance to the efficiency of the entire finite-element (FE) computation. To accelerate the Krylov subspace iterative methods, some preconditioning techniques have been developed based on the factorization of elastic stiffness ...
Xi Chen +3 more
openaire +1 more source
Iterative Method with the Preconditioner (I + Smax) for H‐Matrices
PAMM, 2003AbstractIn 2002 Kotakemori et al. have reported the Modified Gauss‐Seidel method with a preconditioner (I + Smax). The convergence of the new method they investigated only for Z‐matrices, for which the new method can be superior to other iterative methods. But, in the case of H‐matrices this method can be superior to the others, too.
Kostić, Vladimir, Cvetković, Ljiljana
openaire +1 more source
Updating preconditioner for iterative method in time domain simulation of power systems
Science China Technological Sciences, 2011zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wang, K. +4 more
openaire +3 more sources
Iterative methods for solving sparse linear systems with a parallel preconditioner
International Journal of Computer Mathematics, 1992The incomplete LU factorization is one of the more effective preconditioner of the conjugate gradient-type methods in connection with the solution of large, sparse systems of linear equations. In this paper, the results obtained with the use of the level scheduling method are shown.
openaire +1 more source
54th AIAA Aerospace Sciences Meeting, 2016
Enhancements to the previously reported mixed-element USM3D Hierarchical Adaptive Nonlinear Iteration Method (HANIM) framework have been made to further improve robustness, efficiency, and accuracy of computational fluid dynamic simulations. The key enhancements include a multi-color line-implicit preconditioner, a discretely consistent symmetry ...
Mohagna J. Pandya +3 more
openaire +1 more source
Enhancements to the previously reported mixed-element USM3D Hierarchical Adaptive Nonlinear Iteration Method (HANIM) framework have been made to further improve robustness, efficiency, and accuracy of computational fluid dynamic simulations. The key enhancements include a multi-color line-implicit preconditioner, a discretely consistent symmetry ...
Mohagna J. Pandya +3 more
openaire +1 more source
Computational and Applied Mathematics, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lu-Bin Cui, Xiaoqing Zhang, Shi-Liang Wu
openaire +2 more sources
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lu-Bin Cui, Xiaoqing Zhang, Shi-Liang Wu
openaire +2 more sources
Incomplete LU Preconditioners for Conjugate-Gradient-Type Iterative Methods
SPE Reservoir Engineering, 1988Summary In recent years, such conjugate-gradient-type methods as orthomin have been used very successfully with various preconditioners to solve the unsymmetric linear systems that arise in reservoir simulation. Here these successful iterative methods are combined with a new set of preconditioners that have been derived from some ...
openaire +1 more source
Structured preconditioners for matrix-free iterative methods
2013Das Berechnen der sogenannten Quasispezies in Eigen's Quasispeziesmodell ist gleichbedeutend mit der Berechnung des dominierenden Eigenvektors von sehr großen, stark strukturierten Matrizen. Insbesondere wächst die Dimension dieser Matrizen exponentiell mit dem für die Praxis entscheidenden Modellparameter. Daher leiden Standardmethoden am sogenannten "
openaire +1 more source
Journal of Mathematical Sciences, 2015
An algorithm for multiple solution of systems of linear algebraic equations by the preconditioned BiCGStab method is proposed. When the number of iterations for solving a current system becomes too large, the precontioner is recomputed. Results of numerical experiments on computing the capacitance matrices of a microstrip line in a wide range of its ...
R. R. Akhunov +2 more
openaire +1 more source
An algorithm for multiple solution of systems of linear algebraic equations by the preconditioned BiCGStab method is proposed. When the number of iterations for solving a current system becomes too large, the precontioner is recomputed. Results of numerical experiments on computing the capacitance matrices of a microstrip line in a wide range of its ...
R. R. Akhunov +2 more
openaire +1 more source