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Singularly perturbed two-point boundary value problem by applying exponential fitted finite difference method [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2023
The present study addresses an exponentially fitted finite difference method to obtain the solution of singularly perturbed two-point boundary value problems (BVPs) having a boundary layer at one end (left or right) point on uniform mesh.
N. Kumar, R. Kumar Sinha, R. Ranjan
doaj   +1 more source

Differential difference inequalities related to parabolic functional differential equations [PDF]

open access: yesOpuscula Mathematica, 2010
Initial boundary value problems for nonlinear parabolic functional differential equations are transformed by discretization in space variables into systems of ordinary functional differential equations.
Milena Netka
doaj   +1 more source

The Never-Ending Quest for the European Fiscal Policy’s Objectives: Stability vs. Convergence or Stability and Convergence? [PDF]

open access: yesAthens Journal of Business & Economics, 2021
The aim of this paper is to analyse the permanent struggle to define European fiscal policy objectives, hence to define the corresponding structure of such a policy.
Carlo Klein
doaj   +1 more source

Numerical Analysis and Comparison of Four Stabilized Finite Element Methods for the Steady Micropolar Equations

open access: yesEntropy, 2022
In this paper, four stabilized methods based on the lowest equal-order finite element pair for the steady micropolar Navier–Stokes equations (MNSE) are presented, which are penalty, regular, multiscale enrichment, and local Gauss integration methods.
Jingnan Liu, Demin Liu
doaj   +1 more source

An efficient modified hybrid explicit group iterative method for the time-fractional diffusion equation in two space dimensions

open access: yesAIMS Mathematics, 2022
In this paper, a new modified hybrid explicit group (MHEG) iterative method is presented for the efficient and accurate numerical solution of a time-fractional diffusion equation in two space dimensions.
Fouad Mohammad Salama   +3 more
doaj   +1 more source

Fast hybrid explicit group methods for solving 2D fractional advection-diffusion equation

open access: yesAIMS Mathematics, 2022
In recent years, fractional partial differential equations (FPDEs) have been viewed as powerful mathematical tools for describing ample phenomena in various scientific disciplines and have been extensively researched. In this article, the hybrid explicit
Fouad Mohammad Salama   +3 more
doaj   +1 more source

The Natural Boundary Element Method of the Uniform Transmission Line Equation in 2D Unbounded Region

open access: yesMathematics, 2022
Herein, we are mainly concerned with the natural boundary element (NBE) method of the uniform transmission line (UTL) equation defined in the two-dimensional (2D) boundless region, which has a real physical background.
Fei Teng, Taiying Zhu, Zhixiong Jiang
doaj   +1 more source

An accurate and efficient local one-dimensional method for the 3D acoustic wave equation

open access: yesDemonstratio Mathematica, 2022
We establish an accurate and efficient scheme with four-order accuracy for solving three-dimensional (3D) acoustic wave equation. First, the local one-dimensional method is used to transfer the 3D wave equation into three one-dimensional wave equations ...
Wu Mengling, Jiang Yunzhi, Ge Yongbin
doaj   +1 more source

A Second-Order Accurate Numerical Approximation for a Two-Sided Space-Fractional Diffusion Equation

open access: yesMathematics, 2023
In this paper, we investigate a practical numerical method for solving a one-dimensional two-sided space-fractional diffusion equation with variable coefficients in a finite domain, which is based on the classical Crank-Nicolson (CN) method combined with
Taohua Liu   +3 more
doaj   +1 more source

An Unchanged Basis Function and Preserving Accuracy Crank–Nicolson Finite Element Reduced-Dimension Method for Symmetric Tempered Fractional Diffusion Equation

open access: yesMathematics, 2022
We herein mainly employ a proper orthogonal decomposition (POD) to study the reduced dimension of unknown solution coefficient vectors in the Crank–Nicolson finite element (FE) (CNFE) method for the symmetric tempered fractional diffusion equation so ...
Xiaoyong Yang, Zhendong Luo
doaj   +1 more source

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