Results 1 to 10 of about 625 (264)
Hierarchical Matrices Method and Its Application in Electromagnetic Integral Equations
International Journal of Antennas and Propagation, 2012 Hierarchical (H-) matrices method is a general mathematical framework providing a highly compact representation and efficient numerical arithmetic. When applied in integral-equation- (IE-) based computational electromagnetics, H-matrices can be regarded ...
Han Guo, Jun Hu, Hanru Shao, Zaiping Nie
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An Efficient Method for Model Reduction in Diffuse Optical Tomography
Iranian Journal of Electrical and Electronic Engineering, 2008 We present an efficient method for the reduction of model equations in the linearized diffuse optical tomography (DOT) problem. We first implement the maximum a posteriori (MAP) estimator and Tikhonov regularization, which are based on applying ...
A.-R. Zirak, M. Khademi, M.-S. Mahloji
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ESAIM: Proceedings and Surveys, 2018 Sweeping-type algorithms have recently gained a lot of interest for the solution of highfrequency time-harmonic wave problems, in particular when used in combination with perfectly matched layers.
Vion Alexandre, Geuzaine Christophe
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Discretisations and Preconditioners for Magnetohydrodynamics Models
CoRR, 2022 The magnetohydrodynamics (MHD) equations are generally known to be difficult to solve numerically, due to their highly nonlinear structure and the strong coupling between the electromagnetic and hydrodynamic variables, especially for high Reynolds and coupling numbers.
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The BPS preconditioner on Beowulf cluster
Revista de Matemática: Teoría y Aplicaciones, 2009 This work presents the implementation on a Linux Cluster of a parallel preconditioner for the solution of the linear system resulting from the finite element discretization of a 2D second order elliptic boundary value problem. The numerical method, proposed by Bramble, Pasciak and Schatz, is developed using Domain Decomposition techniques, which are ...
O Salas +4 more
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Oléagineux, Corps gras, Lipides, 2011 Stroke is the third leading cause of death, due to its high incidence, the severity of the insult, and lack of treatment options. The only therapeutic is restoration of cerebral blood flow achieved by recombinant tissue plasminogen activator treatment ...
Blondeau Nicolas
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Study on the preconditioners \((I+S_m)\)
Journal of Computational and Applied Mathematics, 2010 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Parallel solution methods and preconditioners for evolution equations
Mathematical Modelling and Analysis, 2018 The recent development of the high performance computer platforms shows a clear trend towards heterogeneity and hierarchy. In order to utilize the computational power, particular attention must be paid to finding new algorithms or adjust existing ones so ...
Owe Axelsson +2 more
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Modified Preconditioned GAOR Methods for Systems of Linear Equations
Journal of Applied Mathematics, 2013 Three kinds of preconditioners are proposed to accelerate the generalized AOR (GAOR) method for the linear system from the generalized least squares problem. The convergence and comparison results are obtained.
Xue-Feng Zhang, Qun-Fa Cui, Shi-Liang Wu
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Parallel RFSAI-BFGS Preconditioners for Large Symmetric Eigenproblems
Journal of Applied Mathematics, 2013 We propose a parallel preconditioner for the Newton method in the computation of the leftmost eigenpairs of large and sparse symmetric positive definite matrices.
L. Bergamaschi, A. Martínez
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