Results 11 to 20 of about 682,039 (286)

Exact and nonstandard finite difference schemes for the generalized KdV–Burgers equation

open access: yesAdvances in Difference Equations, 2020
We consider the generalized KdV–Burgers KdVB ( p , m , q ) $\operatorname{KdVB}(p,m,q)$ equation. We have designed exact and consistent nonstandard finite difference schemes (NSFD) for the numerical solution of the KdVB ( 2 , 1 , 2 ) $\operatorname{KdVB}(
C. Koroglu
doaj   +1 more source

Two linearized finite difference schemes for time fractional nonlinear diffusion-wave equations with fourth order derivative

open access: yesAIMS Mathematics, 2021
In this paper, we present a linearized finite difference scheme and a compact finite difference scheme for the time fractional nonlinear diffusion-wave equations with space fourth order derivative based on their equivalent partial integro-differential ...
Emadidin Gahalla Mohmed Elmahdi   +1 more
doaj   +1 more source

Application of the Explicit Euler Method for Numerical Analysis of a Nonlinear Fractional Oscillation Equation

open access: yesFractal and Fractional, 2022
In this paper, a numerical analysis of the oscillation equation with a derivative of a fractional variable Riemann–Liouville order in the dissipative term, which is responsible for viscous friction, is carried out.
Valentine Aleksandrovich Kim   +1 more
doaj   +1 more source

The convergence of a numerical method for total variation flow

open access: yesJournal of Algorithms & Computational Technology, 2021
We present a convergence analysis for a finite difference scheme for the time dependent partial different equation called gradient flow associated with the Rudin-Osher-Fetami model.
Qianying Hong   +2 more
doaj   +1 more source

A unified approach to Mimetic Finite Difference, Hybrid Finite Volume and Mixed Finite Volume methods [PDF]

open access: yes, 2008
We investigate the connections between several recent methods for the discretization of anisotropic heterogeneous diffusion operators on general grids.
Eymard R.   +4 more
core   +6 more sources

Finite-difference analysis for the linear thermoporoelasticity problem and its numerical resolution by multigrid methods

open access: yesMathematical Modelling and Analysis, 2012
This paper deals with the numerical solution of a two-dimensional thermoporoelasticity problem using a finite-difference scheme. Two issues are discussed: stability and convergence in discrete energy norms of the finite-difference scheme are proved, and ...
Natalia Boal   +3 more
doaj   +1 more source

Nonstandard Finite Difference Scheme for a Computer Virus Model

open access: yesJournal of Innovative Science and Engineering, 2020
This study introduces us to a new model developed for computer viruses. The model is presented to remove the protective restriction on the total number of computers connected to the Internet.
Mehmet KOCABIYIK   +2 more
doaj   +1 more source

Implicit finite-difference schemes, based on the Rosenbrock method, for nonlinear Schrödinger equation with artificial boundary conditions. [PDF]

open access: yesPLoS ONE, 2018
We investigate the effectiveness of using the Rosenbrock method for numerical solution of 1D nonlinear Schrödinger equation (or the set of equations) with artificial boundary conditions (ABCs).
Vyacheslav A Trofimov, Evgeny M Trykin
doaj   +1 more source

A dynamically-consistent nonstandard finite difference scheme for the SICA model

open access: yesMathematical Biosciences and Engineering, 2021
In this work, we derive a nonstandard finite difference scheme for the SICA (Susceptible–Infected–Chronic–AIDS) model and analyze the dynamical properties of the discretized system.
Sandra Vaz, Delfim F. M. Torres
doaj   +1 more source

Analysis of Two-Level Mesh Method for Partial Integro-Differential Equation

open access: yesJournal of Function Spaces, 2022
In this paper, we present two-level mesh scheme to solve partial integro-differential equation. The proposed method is based on a finite difference method. For the first step, we use finite difference method in time and global radial basis function (RBF)
Quan Tang   +3 more
doaj   +1 more source

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