Results 31 to 40 of about 1,567,090 (281)
Approximating Solution Structure
, 2007 Contains fulltext : 55507.pdf (Publisher’s version ) (Open Access)
van Rooij, Iris +3 more
openaire +4 more sources
An approximate solution for the time-fractional diffusion equation
Journal of Innovative Applied Mathematics and Computational Sciences, 2022 In this paper, a numerical method based on a finite difference scheme is proposed for solving the time-fractional diffusion equation (TFDE). The TFDE is obtained from the standard diffusion equation by replacing the first-order time derivative with ...
Sayed Ali Ahmad Mosavi
doaj +1 more source
Journal of King Saud University: Engineering Sciences, 2019 In this paper an approximate analytical solution for the Frank-Kamenetskii equation modeling thermal ignition without the depletion of the combustibles in a spherical annulus and non-isothermal zero order reaction in spherical catalyst particle is ...
Moustafa Aly Soliman
doaj +1 more source
Axioms, 2023 This paper considers a theoretical substantiation of the influence of a perturbation of a moving singular point on the analytical approximate solution to the Van der Pol equation obtained earlier by the author.
Victor Orlov
doaj +1 more source
Exterior and interior metrics with quadrupole moment [PDF]
, 2010 We present the Ernst potential and the line element of an exact solution of Einstein's vacuum field equations that contains as arbitrary parameters the total mass, the angular momentum, and the quadrupole moment of a rotating mass distribution.
B. Voorhees +19 more
core +1 more source
Vietnam Journal of Mechanics, 2004 Second approximate solution of a second order differential equation with slowly varying coefficients and damping is obtained by Krylov-Bogoliubov-Mitropolskii method. The method is illustrated by an example.
Roy K. C., Shamsul Alam M.
doaj +1 more source
Filtration of the underground water to the workings of a large diameter
Известия высших учебных заведений: Геология и разведка, 2019 An approximate solution obtained by the author for the problem of the flow of pressure groundwater to a large-diameter water receiving system with a disturbed aquifer with a constant flow rate has been given. The solution has been obtained using the most
M. M. Burakov
doaj +1 more source
Approximate solution to the stochastic Kuramoto model
, 2013 We study Kuramoto phase oscillators with temporal fluctuations in the frequencies. The infinite-dimensional system can be reduced in a Gaussian approximation to two first-order differential equations.
Schimansky-Geier, Lutz +1 more
core +1 more source
The Approximate Solution of Some Plane Boundary Value Problems of the Moment Theory of Elasticity
Advances in Mathematical Physics, 2016 We consider a two-dimensional system of differential equations of the moment theory of elasticity. The general solution of this system is represented by two arbitrary harmonic functions and solution of the Helmholtz equation.
Roman Janjgava
doaj +1 more source
Normalization of the wavefunction obtained from perturbation theory based on a matrix method
, 2017 We present the derivation of the normalization constant for the perturbation matrix method recently proposed. The method is tested on the problem of a binary waveguide array for which an exact and an approximate solution are known.
Moya-Cessa, H. M. +2 more
core +1 more source