Results 11 to 20 of about 62 (56)

Comparative Study on Numerical Methods for Singularly Perturbed Advanced-Delay Differential Equations

open access: yesJournal of Mathematics, 2021
In this paper, we consider a class of singularly perturbed advanced-delay differential equations of convection-diffusion type. We use finite and hybrid difference schemes to solve the problem on piecewise Shishkin mesh.
P. Hammachukiattikul   +5 more
doaj   +2 more sources

The European regions in the global value chains: New results with new data

open access: yesPapers in Regional Science, Volume 102, Issue 6, Page 1097-1126, December 2023., 2023
Abstract This article contains the methodology and main results related to the update and extension of the widest interregional input–output tables for the entire EU27, UK and the European Free Trade Association (EFTA) countries. This work continues the outstanding effort developed in the past years regarding the estimation and analysis of different ...
Miguel Ángel Almazán‐Gómez   +3 more
wiley   +1 more source

A new adaptive nonlinear numerical method for singular and stiff differential problems

open access: yesAlexandria Engineering Journal, 2023
In this work, a new adaptive numerical method is proposed for solving nonlinear, singular, and stiff initial value problems often encountered in real life.
Sania Qureshi   +6 more
doaj   +1 more source

Numerical simulation for nonlinear space-fractional reaction convection-diffusion equation with its application

open access: yesAlexandria Engineering Journal, 2023
In this research, we adopt a fully implicit approach with a weighted shifted Grunwald–Letnikov difference operator to find the numerical solution of the one and two-dimensional nonlinear space fractional convection–diffusion-reaction equation over a ...
Eyaya Fekadie Anley   +3 more
doaj   +1 more source

Cubic spline solutions of the ninth order linear and non-linear boundary value problems

open access: yesAlexandria Engineering Journal, 2022
A lot of numerical formulations of physical phenomena contain 9th-order BVPs. The presented probe intends to consider the spline solutions of the 9th-order boundary value problems using Cubic B Spline(CBS).
Xiao-Zhong Zhang   +5 more
doaj   +1 more source

Numerical Analysis of Transmission Lines Equation by new β-method Schemes

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2017
In this paper we develop a new β-method applied to the resolution of homogeneous transmission lines. A comparison with conventional methods used for this type of problems like FDTD method or classical β-method is also given.
Allali Fatima   +3 more
doaj   +1 more source

Gaussian quadrature rules and A‐stability of Galerkin schemes for ODE

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 31, Page 1947-1959, 2003., 2003
The A‐stability properties of continuous and discontinuous Galerkin methods for solving ordinary differential equations (ODEs) are established using properties of Legendre polynomials and Gaussian quadrature rules. The influence on the A‐stability of the numerical integration using Gaussian quadrature rules involving a parameter is analyzed.
Ali Bensebah   +2 more
wiley   +1 more source

A posteriori error estimates for mixed finite volume solution of elliptic boundary value problems

open access: yesMoroccan Journal of Pure and Applied Analysis, 2017
The major emphasis of this work is the derivation of a posteriori error estimates for the mixed finite volume discretization of second-order elliptic equations. The estimates are established for meshes consisting of simplices on unstructured grids.
Benkhaldoun Fayssal   +2 more
doaj   +1 more source

Fitted finite difference method for third order singularly perturbed convection diffusion equations with integral boundary condition

open access: yesArab Journal of Mathematical Sciences, 2019
A class of third order singularly perturbed convection diffusion type equations with integral boundary condition is considered. A numerical method based on a finite difference scheme on a Shishkin mesh is presented.
Velusamy Raja, Ayyadurai Tamilselvan
doaj   +1 more source

New Caputo-Fabrizio fractional order SEIASqEqHR model for COVID-19 epidemic transmission with genetic algorithm based control strategy

open access: yesAlexandria Engineering Journal, 2020
Fractional derivative has a memory and non-localization features that make it very useful in modelling epidemics’ transition. The kernel of Caputo-Fabrizio fractional derivative has many features such as non-singularity, non-locality and an exponential ...
M. Higazy, Maryam Ahmed Alyami
doaj   +1 more source

Home - About - Disclaimer - Privacy