Results 61 to 70 of about 434,100 (202)
Acceleration of implicit schemes for large systems of nonlinear differential-algebraic equations
AIMS Mathematics, 2020 When solving large systems of nonlinear differential-algebraic equations by implicit schemes, each integration step requires the solution of a system of large nonlinear algebraic equations.
Mouhamad Al Sayed Ali, Miloud Sadkane
doaj +1 more source
Iterative Matrix Inversion Based Low Complexity Detection in Large/Massive MIMO Systems
, 2015 Linear detectors such as zero forcing (ZF) or minimum mean square error (MMSE) are imperative for large/massive MIMO systems for both the downlink and uplink scenarios.
Chaturvedi, A. K. +2 more
core +1 more source
Non-stationary iterative methods for solving macroeconomic numeric models [PDF]
Informatică economică, 2006 Macroeconometric modeling was influenced by the development of new and efficient computational techniques. Rational Expectations models, a particular class of macroeconometric models, give raise to very large systems of equations, the solution of which ...
Bogdan OANCEA
doaj
Advances in Difference Equations, 2020 We introduce an effective iterative method for solving rectangular linear systems, based on gradients along with the steepest descent optimization. We show that the proposed method is applicable with any initial vectors as long as the coefficient matrix ...
Adisorn Kittisopaporn +1 more
doaj +1 more source
A Bramble-Pasciak conjugate gradient method for discrete Stokes equations with random viscosity
, 2018 We study the iterative solution of linear systems of equations arising from stochastic Galerkin finite element discretizations of saddle point problems. We focus on the Stokes model with random data parametrized by uniformly distributed random variables ...
Lang, Jens +2 more
core +1 more source
Finite Element Computations on Mobile Devices: Optimization and Numerical Efficiency
AlgorithmsSmartphones have become increasingly powerful and widespread, enabling complex numerical computations that were once limited to desktop systems. However, implementing high-precision Finite Element Analysis (FEA) on mobile devices remains challenging due ...
Maya Saade, Rafic Younes, Pascal Lafon
doaj +1 more source
On a computer implementation of the block Gauss-Seidel method for normal systems of equations
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2016 This article focuses on the modification of the block option Gauss-Seidel method for normal systems of equations, which is a sufficiently effective method of solving generally overdetermined, systems of linear algebraic equations of high dimensionality ...
Alexander I Bogdanova +1 more
doaj +1 more source
Advances in Mathematical Physics, 2017 A numerical approach is proposed for solving multidimensional parabolic diffusion and hyperbolic wave equations subject to the appropriate initial and boundary conditions. The considered numerical solutions of the these equations are considered as linear
Bashar Zogheib +2 more
doaj +1 more source
Symbolic preconditioning techniques for linear systems of partial differential equations [PDF]
, 2012 Some algorithmic aspects of systems of PDEs based simulations can be better clarified by means of symbolic computation techniques. This is very important since numerical simulations heavily rely on solving systems of PDEs. For the large-scale problems we
Cluzeau, Thomas +3 more
core +3 more sources
Study of methods for dimension reduction of complex dynamic linear systems models
MATEC Web of Conferences, 2018 Complex dynamic linear systems of equations are solved by numerical iterative methods, which need much computation and are timeconsuming ones, and the optimization stage requires repeated solution of these equation systems that increases the time on ...
Manatskov Yuriy M. +3 more
doaj +1 more source