Results 21 to 30 of about 1,664 (89)

Time-fractional nonlinear Swift-Hohenberg equation: Analysis and numerical simulation

open access: yesAlexandria Engineering Journal, 2020
In this paper, a new scheme based on the exponential fitting technique is presented for solving the nonlinear time-fractional Swift-Hohenberg equation, where the first and second-order derivatives are replaced by Caputo fractional derivative.
W.K. Zahra, M.A. Nasr, Dumitru Baleanu
doaj   +1 more source

Resonance-based schemes for dispersive equations via decorated trees

open access: yesForum of Mathematics, Pi, 2022
We introduce a numerical framework for dispersive equations embedding their underlying resonance structure into the discretisation. This will allow us to resolve the nonlinear oscillations of the partial differential equation (PDE) and to approximate ...
Yvain Bruned, Katharina Schratz
doaj   +1 more source

Numerical resolution of an exact heat conduction model with a delay term [PDF]

open access: yes, 2019
In this paper we analyze, from the numerical point of view, a dynamic thermoelastic problem. Here, the so-called exact heat conduction model with a delay term is used to obtain the heat evolution.
Campo, Marco   +2 more
core   +2 more sources

Crank-Nicolson orthogonal spline collocation method combined with WSGI difference scheme for the two-dimensional time-fractional diffusion-wave equation

open access: yesOpen Mathematics, 2020
In this paper, a discrete orthogonal spline collocation method combining with a second-order Crank-Nicolson weighted and shifted Grünwald integral (WSGI) operator is proposed for solving time-fractional wave equations based on its equivalent partial ...
Xu Xiaoyong, Zhou Fengying
doaj   +1 more source

DIRK Schemes with High Weak Stage Order

open access: yes, 2020
Runge-Kutta time-stepping methods in general suffer from order reduction: the observed order of convergence may be less than the formal order when applied to certain stiff problems.
A Ditkowski   +9 more
core   +1 more source

Approximate solution for solving nonlinear fractional order smoking model

open access: yesAlexandria Engineering Journal, 2020
In this paper, Generalized Mittag-Leffler function method (GMLFM) and Sumudu transform method (STM) are applied to study and solve the fractional order smoking model, where the derivatives are defined in the Caputo fractional sense.
A.M.S. Mahdy, N.H. Sweilam, M. Higazy
doaj   +1 more source

Approximate solution for Euler equations of stratified water via numerical solution of coupled KdV system

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 63, Page 3979-3993, 2003., 2003
We consider Euler equations with stratified background state that is valid for internal water waves. The solution of the initial‐boundary problem for Boussinesq approximation in the waveguide mode is presented in terms of the stream function. The orthogonal eigenfunctions describe a vertical shape of the internal wave modes and satisfy a Sturm ...
A. A. Halim   +2 more
wiley   +1 more source

Novel fixed point approach to Atangana-Baleanu fractional and Lp-Fredholm integral equations

open access: yesAlexandria Engineering Journal, 2020
In this article, we introduce an extended F-metric and proved related fixed point results. Subsequently, we mainly focus on(a): Solution for the Atangana-Baleanu fractional integral of order ∝ of a function f(t)It∝sABζ(t)=1-∝B(∝)ζ(t)+∝B(∝)Γ(∝)∫0tζ(ρ)(t-ρ)
Sumati Kumari Panda   +2 more
doaj   +1 more source

Discretizing a backward stochastic differential equation

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 32, Issue 2, Page 103-116, 2002., 2002
We show a simple method to discretize Pardoux‐Peng′s nonlinear backward stochastic differential equation. This discretization scheme also gives a numerical method to solve a class of semi‐linear PDEs.
Yinnan Zhang, Weian Zheng
wiley   +1 more source

Stability and convergence of a local discontinuous Galerkin finite element method for the general Lax equation

open access: yesOpen Mathematics, 2018
In this paper we develop and analyze the local discontinuous Galerkin (LDG) finite element method for solving the general Lax equation. The local discontinuous Galerkin method has the flexibility for arbitrary h and p adaptivity, and allows for hanging ...
Wei Leilei, Mu Yundong
doaj   +1 more source

Home - About - Disclaimer - Privacy