Results 1 to 10 of about 25,064 (217)

Analytical and Numerical Simulations of a Delay Model: The Pantograph Delay Equation

open access: yesAxioms, 2022
In this paper, the pantograph delay differential equation y′(t)=ay(t)+byct subject to the condition y(0)=λ is reanalyzed for the real constants a, b, and c. In the literature, it has been shown that the pantograph delay differential equation, for λ=1, is
Essam Roshdy El-Zahar, Abdelhalim Ebaid
doaj   +1 more source

New Exact Solutions of Burgers’ Equation Using Power Index Method

open access: yesDiscrete Dynamics in Nature and Society, 2022
In this article, we focus on the new exact solutions of Burger’s equation by using a new technique which is known as the power index method (PIM). In this method, we choose suitable indexes of independent variables and similarity transformation so that ...
Khalil Ahmad, Khudija Bibi
doaj   +1 more source

Two effective methods for solving nonlinear coupled time-fractional Schrödinger equations

open access: yesAlexandria Engineering Journal, 2023
The objective of this work is to implement two efficient techniques, namely, the Laplace Adomian decomposition method (LADM) and the modified generalized Mittag–Leffler function method (MGMLFM) on a system of nonlinear fractional partial differential ...
Ismail Gad Ameen   +2 more
doaj   +1 more source

Peakon solutions of a b-Novikov equation

open access: yesApplied Mathematics in Science and Engineering, 2022
The homotopy analysis method is applied to a b-Novikov equation in order to obtain analytic approximations of its peakon solution for various values of b.
Aggeliki G. Efstathiou   +1 more
doaj   +1 more source

Solving linear and nonlinear Volterra Fuzzy Integral Equations System via Differential Transform Method

open access: yesFuzzy Optimization and Modeling, 2022
In this study, we consider solving the second kind Volterra fuzzy integral equations system in two cases linear and nonlinear by using a semi-analytic method, called Differential Transform Method (DTM).
Mahmoud Paripour, Mandana Takrimi
doaj   +1 more source

Exact analytical solution for the stationary two-dimensional heat conduction problem with a heat source

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2019
The exact analytic solution for the stationary two-dimensional heat conduction problem with a heat source for an infinite square bar was obtained. It was based on the Bubnov–Galyorkin orthogonal method using trigonometric systems of coordinate functions.
Igor Vasilievich Kudinov   +2 more
doaj   +3 more sources

An analytic model of implosion toward possible fusion

open access: yesResults in Physics, 2016
We apply to a spherically symmetric system a time evolution equation from which an exact solution of the Navier–Stokes equation has been obtained (Muriel, 2011, 2014). The radial density and temperature of a gas is calculated.
A. Muriel
doaj   +1 more source

Cordial Volterra Integral Equations and Singular Fractional Integro-Differential Equations in Spaces of Analytic Functions∗

open access: yesMathematical Modelling and Analysis, 2017
We study general cordial Volterra integral equations of the second kind and certain singular fractional integro-differential equation in spaces of analytic functions.
Urve Kangro
doaj   +1 more source

Fractional Bernstein operational matrices for solving integro-differential equations involved by Caputo fractional derivative

open access: yesResults in Applied Mathematics, 2022
The present work is devoted to developing two numerical techniques based on fractional Bernstein polynomials, namely fractional Bernstein operational matrix method, to numerically solving a class of fractional integro-differential equations (FIDEs).
M.H.T. Alshbool   +3 more
doaj   +1 more source

On one method for analytical solution of Graetz–Nusselt problem

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2011
An approximate analytic solution of heat transfer problem for fluid flow in a circular tube is found using the method of separation of variables, based on the introduction of additional boundary conditions.
A. V. Eremin, N. M. Budylnikov
doaj   +3 more sources

Home - About - Disclaimer - Privacy