Results 81 to 90 of about 434,100 (202)

Linear iterative solvers for implicit ODE methods [PDF]

The numerical solution of stiff initial value problems, which lead to the problem of solving large systems of mildly nonlinear equations are considered.
Saylor, Paul E., Skeel, Robert D.
core   +1 more source

Constructive Sobolev gradient preconditioning for semilinear elliptic systems

Electronic Journal of Differential Equations, 2004
We present a Sobolev gradient type preconditioning for iterative methods used in solving second order semilinear elliptic systems; the n-tuple of independent Laplacians acts as a preconditioning operator in Sobolev spaces.
Janos Karatson
doaj  

Preconditioned Generalized Minimal Residual Method for Solving Fractional Advection-Diffusion Equation

پژوهش‌های ریاضی, 2019
Introduction Fractional differential equations (FDEs)  have  attracted much attention and have been widely used in the fields of finance, physics, image processing, and biology, etc.
, , ,
doaj  

Iterative methods for solving linear systems

Frontiers in applied mathematics, 1997
A. Greenbaum
semanticscholar   +1 more source

An Analytical-Numerical Method for the Solution of Nonlinear Fractional Fredholm Integro-Differential Equations With Logarithmic Weakly Singular Kernel

Journal of Mathematics
In this work, we investigate a numerical method for solving nonlinear fractional Fredholm integro-differential equations with logarithmic weakly singular kernels.
Ali Edham Awadh, Esmaeil Najafi
doaj   +1 more source

A Robust and Versatile Numerical Framework for Modeling Complex Fractional Phenomena: Applications to Riccati and Lorenz Systems

Fractal and Fractional
The fractional differential quadrature method (FDQM) with generalized Caputo derivatives is used in this paper to show a new numerical way to solve fractional Riccati equations and fractional Lorenz systems.
Waleed Mohammed Abdelfattah, Ola Ragb, Mohamed Salah, Mokhtar Mohamed   +3 more
doaj   +1 more source

Low-Complexity SAOR and Conjugate Gradient Accelerated SAOR Based Signal Detectors for Massive MIMO Systems

Applied System Innovation
A major challenge for massive multiple-input multiple-output (MIMO) technology is designing an efficient signal detector. The conventional linear minimum mean square error (MMSE) detector is capable of achieving good performance in large antenna systems ...
Imran A. Khoso, Mazhar Ali, Muhammad Nauman Irshad, Sushank Chaudhary, Pisit Vanichchanunt, Lunchakorn Wuttisittikulkij   +5 more
doaj   +1 more source

A general class of iterative splitting methods for solving linear systems. ETNA - Electronic Transactions on Numerical Analysis

Recently Ahmadi et al. [IEEE Trans. Parallel Distrib. Syst., 32 (2021), pp. 1452–1464] and Tagliaferro [Research Square (2022)] proposed some iterative methods for the numerical solution of linear systems which, under the classical hypothesis of strict diagonal dominance, typically converge faster than the Jacobi method but slower than the forward ...
Tagliaferro, Fulvio, Zennaro, Marino, Novati, Paolo   +2 more
openaire  

On a Control Problem by Lumped-Parameter at the Right-Hand Side of the Semi-Linear Hyperbolic System

Известия Иркутского государственного университета: Серия "Математика", 2015
At the article an optimal control problem by a first order system of semi-linear hyperbolic equations in the class of smooth control function is studied.
A.V. Arguchintsev, V.P. Poplevko
doaj  

ITERATIVE METHODS FOR CYCLICALLY REDUCED NON-SELF-ADJOINT LINEAR SYSTEMS

, 1990
H. Elman, G. Golub
semanticscholar   +1 more source