Results 41 to 50 of about 10,662,604 (380)

A noniterative domain decomposition method for the forward-backward heat equation [PDF]

Iranian Journal of Numerical Analysis and Optimization, 2020
A nonoverlapping domain decomposition technique applied to a finite difference method is presented for the numerical solution of the forward backward heat equation in the case of one-dimension.
S. Banei, K. Shanazari
doaj   +1 more source

On numerical soliton and convergence analysis of Benjamin-Bona-Mahony-Burger equation via octic B-spline collocation

Arab Journal of Basic and Applied Sciences, 2023
In this work, we employ an octic B-spline function to construct a collocation technique for obtaining solutions to soliton on Benjamin-Bona-Mahony-Burgers (BBMB) equation.
Saumya Ranjan Jena, Archana Senapati
doaj   +1 more source

Finite differences in finite characteristic

Journal of Algebra, 2006
AbstractLet D be a Dedekind domain with characteristic p>0. In this paper, we are interested in the D-algebras Int[k](D) of integer-valued polynomials with all their k-first finite differences. Mainly, we describe the characteristic ideals Jn[k](D) of Int[k](D).
openaire   +2 more sources

Higher order approximation in exponential form based on half-step grid-points for 2D quasilinear elliptic BVPs on a variant domain

MethodsX, 2023
This paper reports a new fourth order Finite Difference Method (FDM) in exponential form for two-dimensional quasilinear boundary value problem of elliptic type (BVPE) with variant solution domain.
Nikita Setia, R.K. Mohanty
doaj  

Exact Finite-Difference Calculus: Beyond Set of Entire Functions

Mathematics
In this paper, a short review of the calculus of exact finite-differences of integer order is proposed. The finite-difference operators are called the exact finite-differences of integer orders, if these operators satisfy the same characteristic ...
Vasily E. Tarasov
doaj   +1 more source

A parameter uniform method for two-parameter singularly perturbed boundary value problems with discontinuous data

MethodsX, 2023
We consider two-parameter singularly perturbed problems of reaction-convection-diffusion type in one dimension. The convection coefficient and source term are discontinuous at a point in the domain.
Nirmali Roy, Anuradha Jha
doaj  

Domain decomposition finite element/finite difference method for the conductivity reconstruction in a hyperbolic equation [PDF]

, 2015
We present domain decomposition finite element/finite difference method for the solution of hyperbolic equation. The domain decomposition is performed such that finite elements and finite differences are used in different subdomains of the computational domain: finite difference method is used on the structured part of the computational domain and ...
arxiv   +1 more source

A mathematical system of COVID-19 disease model: Existence, uniqueness, numerical and sensitivity analysis

MethodsX, 2023
A compartmental mathematical model of spreading COVID-19 disease in Wuhan, China is applied to investigate the pandemic behaviour in Iran. This model is a system of seven ordinary differential equations including individual behavioural reactions ...
Khadijeh Sadri, Hossein Aminikhah, Mahdi Aminikhah   +2 more
doaj  

Finite Difference Schemes for MCM and AMSS

Image Processing On Line, 2011
This article refers to algorithms based on finite difference schemes for computing mean and affine curvature evolutions of digital images, introduced by Alvarez and Morel [L. Alvarez, J.M. Morel, “Formalization and computational aspects of image analysis”
Marco Mondelli, Adina Ciomaga
doaj   +1 more source

Weak solvability of the unconditionally stable difference scheme for the coupled sine-Gordon system

Nonlinear Analysis, 2020
In this paper, we study the existence and uniqueness of weak solution for the system of finite difference schemes for coupled sine-Gordon equations. A novel first order of accuracy unconditionally stable difference scheme is considered.
Ozgur Yildirim, Meltem Uzun
doaj   +1 more source