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Efficient Spectral Collocation Method for Tempered Fractional Differential Equations [PDF]

open access: goldFractal and Fractional, 2023
Transient anomalous diffusion may be modeled by a tempered fractional diffusion equation. In this paper, we present a spectral collocation method with tempered fractional Jacobi functions (TFJFs) as basis functions and obtain an efficient algorithm to ...
Tinggang Zhao
doaj   +2 more sources

Fully Legendre spectral collocation technique for stochastic heat equations [PDF]

open access: goldOpen Physics, 2021
For the stochastic heat equation (SHE), a very accurate spectral method is considered. To solve the SHE, we suggest using a shifted Legendre Gauss–Lobatto collocation approach in combination with a shifted Legendre Gauss–Radau collocation technique.
Abdelkawy Mohamed A.   +3 more
doaj   +2 more sources

Numerical Solution for Elliptic Interface Problems Using Spectral Element Collocation Method [PDF]

open access: goldAbstract and Applied Analysis, 2014
The aim of this paper is to solve an elliptic interface problem with a discontinuous coefficient and a singular source term by the spectral collocation method.
Peyman Hessari   +2 more
doaj   +2 more sources

Space-Time Spectral Collocation Algorithm for the Variable-Order Galilei Invariant Advection Diffusion Equations with a Nonlinear Source Term

open access: diamondMathematical Modelling and Analysis, 2017
This paper presents a space-time spectral collocation technique for solving the variable-order Galilei invariant advection diffusion equation with a nonlinear source term (VO-NGIADE).
Mohamed A. Abd-Elkawy   +1 more
doaj   +3 more sources

Trivariate Spectral Collocation Approach for the Numerical Solution of Three-Dimensional Elliptic Partial Differential Equations [PDF]

open access: goldMathematics, 2022
This article is concerned with the numerical solution of three-dimensional elliptic partial differential equations (PDEs) using the trivariate spectral collocation approach based on the Kronecker tensor product.
Musawenkhosi Patson Mkhatshwa   +1 more
doaj   +2 more sources

A Time-Space Collocation Spectral Approximation for a Class of Time Fractional Differential Equations [PDF]

open access: goldInternational Journal of Differential Equations, 2012
A numerical scheme is presented for a class of time fractional differential equations with Dirichlet's and Neumann's boundary conditions. The model solution is discretized in time and space with a spectral expansion of Lagrange interpolation polynomial ...
Fenghui Huang
doaj   +2 more sources

Spectral-Collocation Methods for Fractional Pantograph Delay-Integrodifferential Equations [PDF]

open access: yesAdvances in Mathematical Physics, 2013
We propose and analyze a spectral Jacobi-collocation approximation for fractional order integrodifferential equations of Volterra type with pantograph delay. The fractional derivative is described in the Caputo sense. We provide a rigorous error analysis
Yin Yang, Yunqing Huang
doaj   +3 more sources

Spectral collocation method for convection-diffusion equation

open access: yesDemonstratio Mathematica
Spectral collocation method, named linear barycentric rational interpolation collocation method (LBRICM), for convection-diffusion (C-D) equation with constant coefficient is considered.
Li Jin, Cheng Yongling
doaj   +2 more sources

Spectral collocation methods [PDF]

open access: yesApplied Numerical Mathematics, 1989
This is a survey article on the application of spectral collocation methods to the solution of partial differential equations. For the most part, the basis functions used are either trigonometric or Chebyshev polynomials, although there is some discussion of Legendre polynomials.
Hussaini, M. Y.   +2 more
openaire   +2 more sources

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