Results 31 to 40 of about 420,792 (330)

Comparison between solutions of a two-dimensional time-fractional diffusion-reaction equation through Lie symmetries

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2021
In this paper, exact and numerical solutions of two dimensional time-fractional diffusion-reaction equation involving the Riemann-Liouville derivative are determined, by applying a procedure that combines the Lie symmetry analysis with the numerical ...
Alessandra Jannelli   +1 more
doaj   +1 more source

Numerical and computational investigation of soliton propagation in physical systems via computational schemes: (1+1)-dimensional MNW integrable equation

open access: yesResults in Physics, 2023
This study utilizes computational and numerical techniques to investigate the (1+1)-dimensional Mikhailov–Novikov–Wang (MNW) integrable equation, a nonlinear partial differential equation that governs the propagation of solitons in various physical ...
Tianyong Han, Mostafa M.A. Khater
doaj   +1 more source

R-adaptive multisymplectic and variational integrators [PDF]

open access: yes, 2019
Moving mesh methods (also called r-adaptive methods) are space-adaptive strategies used for the numerical simulation of time-dependent partial differential equations.
Desbrun, Mathieu, Tyranowski, Tomasz M.
core   +2 more sources

Nonlinear Klein-Gordon and Schrödinger Equations by the Projected Differential Transform Method

open access: yesAbstract and Applied Analysis, 2012
The differential transform method (DTM) is based on the Taylor series for all variables, but it differs from the traditional Taylor series in calculating coefficients.
Younghae Do, Bongsoo Jang
doaj   +1 more source

Multiscale Partition of Unity [PDF]

open access: yes, 2013
We introduce a new Partition of Unity Method for the numerical homogenization of elliptic partial differential equations with arbitrarily rough coefficients. We do not restrict to a particular ansatz space or the existence of a finite element mesh.
C.A. Duarte   +11 more
core   +2 more sources

Numerical methods for the multiplicative partial differential equations

open access: yesOpen Mathematics, 2017
We propose the multiplicative explicit Euler, multiplicative implicit Euler, and multiplicative Crank-Nicolson algorithms for the numerical solutions of the multiplicative partial differential equation.
Yazıcı Muhammet, Selvitopi Harun
doaj   +1 more source

Reduced Differential Transform Method for (2+1) Dimensional type of the Zakharov-Kuznetsov ZK(n,n) Equations

open access: yes, 2014
In this paper, reduced differential transform method (RDTM) is employed to approximate the solutions of (2+1) dimensional type of the Zakharov-Kuznetsov partial differential equations. We apply these method to two examples.
Acan, Omer, Keskin, Yildiray
core   +1 more source

Uncertainty Quantification for Linear Hyperbolic Equations with Stochastic Process or Random Field Coefficients [PDF]

open access: yes, 2017
In this paper hyperbolic partial differential equations with random coefficients are discussed. Such random partial differential equations appear for instance in traffic flow problems as well as in many physical processes in random media.
Barth, Andrea, Fuchs, Franz G.
core   +2 more sources

Numerical stability analysis and rapid algorithm for calculations of fully developed laminar flow through ducts using time-marching method

open access: yesAIP Advances, 2013
In the numerical calculations of parabolic partial differential equations using explicit-type finite-difference methods (FDMs), the most fundamental finite-difference scheme is the time-forward, centered-space scheme.
Tsugio Fukuchi
doaj   +1 more source

Bivariate Chebyshev polynomials of the fifth kind for variable-order time-fractional partial integro-differential equations with weakly singular kernel

open access: yesAdvances in Difference Equations, 2021
The shifted Chebyshev polynomials of the fifth kind (SCPFK) and the collocation method are employed to achieve approximate solutions of a category of the functional equations, namely variable-order time-fractional weakly singular partial integro ...
Khadijeh Sadri   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy