Results 41 to 50 of about 713 (182)

An Electric Field Volume Integral Equation Approach to Simulate Surface Plasmon Polaritons

open access: yesAdvanced Electromagnetics, 2013
In this paper we present an electric field volume integral equation approach to simulate surface plasmon propagation along metal/dielectric interfaces. Metallic objects embedded in homogeneous dielectric media are considered.
R. Remis, E. Charbon
doaj   +1 more source

Five-Precision GMRES-Based Iterative Refinement [PDF]

open access: yesSIAM Journal on Matrix Analysis and Applications
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Amestoy, Patrick   +5 more
openaire   +3 more sources

GMRES-Accelerated ADMM for Quadratic Objectives [PDF]

open access: yesSIAM Journal on Optimization, 2018
31 pages, 7 figures. Accepted for publication in SIAM Journal on Optimization (SIOPT)
Zhang, Richard Y, White, Jacob K
openaire   +3 more sources

Iterative Krylov Subspace Methods for Linear Port‐Hamiltonian Systems

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 2, June 2026.
ABSTRACT In this work, we present a structure‐preserving Krylov subspace iteration scheme for solving the equation systems that arise from the Gauss integration of linear energy‐conserving and dissipative differential systems (e.g., Poisson systems, gradient systems, and port‐Hamiltonian systems).
Stefan Maier, Nicole Marheineke
wiley   +1 more source

Infinite GMRES for Parameterized Linear Systems

open access: yesSIAM Journal on Matrix Analysis and Applications, 2022
We consider linear parameter-dependent systems $A(μ) x(μ) = b$ for many different $μ$, where $A$ is large and sparse, and depends nonlinearly on $μ$. Solving such systems individually for each $μ$ would require great computational effort. In this work we propose to compute a partial parameterization $\tilde{x} \approx x(μ)$ where $\tilde{x}(μ)$ is ...
Elias Jarlebring, Siobhán Correnty
openaire   +3 more sources

Explicit‐Implicit Material Point Method for Dense Granular Flows With a Novel Regularized µ(I) Model

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 7, Page 3256-3273, May 2026.
ABSTRACT The material point method (MPM) is widely employed to simulate granular flows. Although explicit time integration is favored in most current MPM implementations for its simplicity, it cannot rigorously incorporate the incompressible µ(I)‐rheology, an efficient model ubiquitously adopted in other particle‐based numerical methods. While operator‐
Hang Feng, Zhen‐Yu Yin
wiley   +1 more source

Multilevel acceleration of scattering-source iterations with application to electron transport

open access: yesNuclear Engineering and Technology, 2017
Acceleration/preconditioning strategies available in the SCEPTRE radiation transport code are described. A flexible transport synthetic acceleration (TSA) algorithm that uses a low-order discrete-ordinates (SN) or spherical-harmonics (PN) solve to ...
Clif Drumm, Wesley Fan
doaj   +1 more source

Eficiência dos Métodos Multigrid Algébricos para a Solução da Equação do Fluxo Livre Estacionário em Domínio Georreferenciado

open access: yesTrends in Computational and Applied Mathematics, 2022
Neste artigo o método multigrid algébrico baseado em agregação suavizada, o método clássico de Ruge-Stüben e o método GMRES pré-condicionado por multigrid algébrico foram utilizados para a solução da equação do fluxo livre estacionário em domínio ...
J. P. M. dos Santos   +3 more
doaj   +1 more source

Real‐Time Sampling‐Based Model Predictive Control Based on Reverse Kullback–Leibler Divergence and Its Adaptive Acceleration

open access: yesAdvanced Intelligent Systems, Volume 8, Issue 4, April 2026.
This study presents a new sampling‐based model predictive control minimizing reverse Kullback‐Leibler divergence to quickly find a local optimum. In addition, a modified Nesterov's acceleration method is introduced for faster convergence. The method is effective for real‐time simulations and real‐world operability improvement on a force‐driven mobile ...
Taisuke Kobayashi, Kota Fukumoto
wiley   +1 more source

Numerical investigation of the polymer melt flow in injection molding by using ILU preconditioned GMRES

open access: yesMathematical Modelling and Analysis, 1999
The implementation of a modern preconditioned Newton‐Krylov solvers to the polymer melt flow in injection molding is the main focus of this paper. The viscoelastic and non‐isothermal characteristics of the transient polymer flow is simulated numerically ...
U. Türk, A. Ecder
doaj   +1 more source

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