Results 1 to 10 of about 733 (49)

Quasi Interpolation of radial basis functions-pseudospectral method for solving nonlinear Klein–Gordon and sine-Gordon equations [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2020
We propose a new approach for solving nonlinear Klein–Gordon and sine-Gordon equations based on radial basis function-pseudospectralmethod (RBF-PS). The proposed numerical method is based on quasiinterpolation of radial basis function differentiation ...
M. Emamjomeh, S. Abbasbandy, D. Rostamy
doaj   +1 more source

Bivariate multiquadric quasi-interpolation operators of Lidstone type

open access: yesAIMS Mathematics, 2023
In this paper, a kind of bivariate multiquadric quasi-interpolant with the derivatives of a approximated function is studied by combining the known multiquadric quasi-interpolant with the generalized Taylor polynomials that act as the bivariate Lidstone ...
Ruifeng Wu
doaj   +1 more source

A kind of bivariate Bernoulli-type multiquadric quasi-interpolation operator with higher approximation order

open access: yesJournal of Inequalities and Applications, 2023
In this paper, a kind of bivariate Bernoulli-type multiquadric quasi-interpolation operator is studied by combining the known multiquadric quasi-interpolation operator with the generalized Taylor polynomial as the expansion in the bivariate Bernoulli ...
Ruifeng Wu
doaj   +1 more source

Abel–Goncharov Type Multiquadric Quasi-Interpolation Operators with Higher Approximation Order

open access: yesJournal of Mathematics, 2021
A kind of Abel–Goncharov type operators is surveyed. The presented method is studied by combining the known multiquadric quasi-interpolant with univariate Abel–Goncharov interpolation polynomials.
Ruifeng Wu
doaj   +1 more source

Local RBF approximation for scattered data fitting with bivariate splines [PDF]

open access: yes, 2005
In this paper we continue our earlier research [4] aimed at developing effcient methods of local approximation suitable for the first stage of a spline based two-stage scattered data fitting algorithm.
A. Björck   +9 more
core   +2 more sources

Partition of unity interpolation using stable kernel-based techniques [PDF]

open access: yes, 2016
In this paper we propose a new stable and accurate approximation technique which is extremely effective for interpolating large scattered data sets.
Cavoretto, R.   +4 more
core   +1 more source

Adaptive meshless centres and RBF stencils for Poisson equation [PDF]

open access: yes, 2011
We consider adaptive meshless discretisation of the Dirichlet problem for Poisson equation based on numerical differentiation stencils obtained with the help of radial basis functions. New meshless stencil selection and adaptive refinement algorithms are
Babuska   +40 more
core   +1 more source

On the Numerical Solution of One-Dimensional Nonlinear Nonhomogeneous Burgers’ Equation

open access: yesJournal of Applied Mathematics, 2014
The nonlinear Burgers’ equation is a simple form of Navier-Stocks equation. The nonlinear nature of Burgers’ equation has been exploited as a useful prototype differential equation for modeling many phenomena. This paper proposes two meshfree methods for
Maryam Sarboland, Azim Aminataei
doaj   +1 more source

A Family of Modified Even Order Bernoulli-Type Multiquadric Quasi-Interpolants with Any Degree Polynomial Reproduction Property

open access: yesJournal of Applied Mathematics, 2014
By using the polynomial expansion in the even order Bernoulli polynomials and using the linear combinations of the shifts of the function f(x)(x∈ℝ) to approximate the derivatives of f(x), we propose a family of modified even order Bernoulli-type ...
Ruifeng Wu, Huilai Li, Tieru Wu
doaj   +1 more source

Laminated Beam Analysis by Polynomial, rigonometric, Exponential and Zig-Zag Theories [PDF]

open access: yes, 2013
A number of refined beam theories are discussed in this paper. These theories were obtained by expanding the unknown displacement variables over the beam section axes by adopting Taylor's polynomials, trigonometric series, exponential, hyperbolic and zig ...
Carrera, Erasmo   +2 more
core   +1 more source

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