Results 1 to 10 of about 20,962 (291)

A Pseudo-Spectral Fourier Collocation Method for Inhomogeneous Elliptical Inclusions with Partial Differential Equations [PDF]

open access: yesMathematics, 2022
Inhomogeneous elliptical inclusions with partial differential equations have aroused appreciable concern in many disciplines. In this paper, a pseudo-spectral collocation method, based on Fourier basis functions, is proposed for the numerical solutions ...
Xiao Wang   +3 more
doaj   +3 more sources

Fourier pseudo-spectral method for the extended Fisher-Kolmogorov equation in two dimensions

open access: yesAdvances in Difference Equations, 2017
In the study of pattern formation in bi-stable systems, the extended Fisher-Kolmogorov (EFK) equation plays an important role. In this paper, a Fourier pseudo-spectral method for solving the EFK equation in two space dimensions is presented. Prior bounds
Fengnan Liu, Xiaopeng Zhao, Bo Liu
doaj   +3 more sources

Flow Modeling over Airfoils and Vertical Axis Wind Turbines Using Fourier Pseudo-Spectral Method and Coupled Immersed Boundary Method

open access: yesAxioms, 2023
In the present work, verifying the applicability and potentiality of the IMERSPEC methodology for numerical and computational modeling of two-dimensional flows over airfoils and vertical axis wind turbines is proposed.
Lucas Marques Monteiro   +1 more
doaj   +4 more sources

A conservative Fourier pseudo-spectral method for the nonlinear Schrödinger equation [PDF]

open access: yesJournal of Computational Physics, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yuezheng Gong   +2 more
exaly   +3 more sources

A Deuflhard-Type Exponential Integrator Fourier Pseudo-Spectral Method for the “Good” Boussinesq Equation [PDF]

open access: yesJournal of Scientific Computing, 2020
We propose an exponential integrator Fourier pseudospectral method DEI-FP for solving the "Good" Boussinesq (GB) equation. The numerical scheme is based on a Deuflhard-type exponential integrator and a Fourier pseudospectral method for temporal and spatial discretizations, respectively. The scheme is fully explicit and efficient due to the fast Fourier
Chunmei Su, Wenqi Yao
exaly   +4 more sources

Energy-dissipative adaptive-step L1 discretisation for the Caputo time-fractional incompressible magnetohydrodynamic system [PDF]

open access: yesScientific Reports
We study the incompressible magnetohydrodynamic system endowed with a Caputo time-fractional derivative of order ...
Muhammad Zainul Abidin
doaj   +2 more sources

An Accurate Numerical Solution for the Modified Equal Width Wave Equation Using the Fourier Pseudo-Spectral Method

open access: yesJournal of Applied Mathematics and Physics, 2016
In this study, the numerical solution for the Modified Equal Width Wave (MEW) equation is presented using Fourier spectral method that use to discretize the space variable and Leap-frog method scheme for time dependence. Test problems including the single soliton wave motion, interaction of two solitary waves and interaction of three solitary waves ...
Hany N Hassan
exaly   +3 more sources

A localized Fourier collocation method for 2D and 3D elliptic partial differential equations: Theory and MATLAB code

open access: yesInternational Journal of Mechanical System Dynamics, 2022
A localized Fourier collocation method is proposed for solving certain types of elliptic boundary value problems. The method first discretizes the entire domain into a set of overlapping small subdomains, and then in each of the subdomains, the unknown ...
Yan Gu, Zhuojia Fu, Mikhail V. Golub
doaj   +1 more source

Numerical Solutions of the (2+1)-Dimensional Nonlinear and Linear Time-Dependent Schrödinger Equations Using Three Efficient Approximate Schemes

open access: yesFractal and Fractional, 2023
In this paper, the (2+1)-dimensional nonlinear Schrödinger equation (2D NLSE) abreast of the (2+1)-dimensional linear time-dependent Schrödinger equation (2D TDSE) are thoroughly investigated.
Neveen G. A. Farag   +3 more
doaj   +1 more source

An inverse boundary value problem for a two-dimensional pseudo-parabolic equation of third order

open access: yesResults in Applied Mathematics, 2022
In the present work, we consider an inverse boundary value problem for a two-dimensional pseudo-parabolic equation of the third-order. Using analytical and operator-theoretic methods, as well as the Fourier method, the existence and uniqueness of the ...
Yashar T. Mehraliyev   +2 more
doaj   +1 more source

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