Results 11 to 20 of about 11,687,734 (245)

A collocation spectral method for two-dimensional Sobolev equations

open access: yesBoundary Value Problems, 2018
This article mainly studies a collocation spectral method for two-dimensional (2D) Sobolev equations. To this end, a collocation spectral model based on the Chebyshev polynomials for the 2D Sobolev equations is first established. And then, the existence,
Shiju Jin, Zhendong Luo
doaj   +2 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

A Crank–Nicolson collocation spectral method for the two-dimensional telegraph equations

open access: yesJournal of Inequalities and Applications, 2018
In this paper, we mainly focus to study the Crank–Nicolson collocation spectral method for two-dimensional (2D) telegraph equations. For this purpose, we first establish a Crank–Nicolson collocation spectral model based on the Chebyshev polynomials for ...
Yanjie Zhou, Zhendong Luo
doaj   +2 more sources

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

open access: yesAbstract 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

Numerical solution of time-dependent Emden-Fowler equations using bivariate spectral collocation method on overlapping grids

open access: yesNonlinear Engineering, 2020
In this work, we present a new modification to the bivariate spectral collocation method in solving Emden-Fowler equations. The novelty of the modified approach is the use of overlapping grids when applying the Chebyshev spectral collocation method.
Mkhatshwa Musawenkhosi P.   +2 more
doaj   +2 more sources

A class of cubic and quintic spline modified collocation methods for the solution of two-point boundary value problems [PDF]

open access: yes, 1987
This paper is concerned with the study of a class of methods for solving second and fourth-order two-point boundary-value problems. The methods under consideration are modifications of the standard cubic and quintic spline collocation techniques, and ...
Soares, M J, Papamichael, N
core   +6 more sources

Jacobi spectral collocation technique for fractional inverse parabolic problem

open access: yesAlexandria Engineering Journal, 2022
We present an efficient numerical solution for the fractional inverse parabolic problem with an unknown condition in this study. In addition to the unknown temperature function, the suggested fractional inverse parabolic problem also has an unknown ...
M.A. Abdelkawy   +3 more
doaj   +1 more source

Collocation, semantic prosody and near synonymy: A cross-linguistic perspective. [PDF]

open access: yes, 2006
This paper explores the collocational behaviour and semantic prosody of near synonyms from a cross-linguistic perspective. The importance of these concepts to language learning is well recognized.
Xiao, R.   +7 more
core   +5 more sources

A High-Efficiency Spectral Method for Two-Dimensional Ocean Acoustic Propagation Calculations

open access: yesEntropy, 2021
The accuracy and efficiency of sound field calculations highly concern issues of hydroacoustics. Recently, one-dimensional spectral methods have shown high-precision characteristics when solving the sound field but can solve only simplified models of ...
Xian Ma   +5 more
doaj   +1 more source

An effective spectral collocation method for the direct solution of high‐order ODEs [PDF]

open access: yes, 2006
This paper reports a new Chebyshev spectral collocation method for directly solving high-order ordinary differential equations (ODEs). The construction of the Chebyshev approximations is based on integration rather than conventional differentiation. This
Mai-Duy, Nam, N. Mai‐Duy
core   +1 more source

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