Results 1 to 10 of about 854,539 (114)

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

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   +5 more sources

Bivariate High-Accuracy Hermite-Type Multiquadric Quasi-Interpolation Operators

open access: yesJournal of Mathematics
In this paper, a kind of Hermite-type multiquadric quasi-interpolation operator is constructed by combining an extended univariate multiquadric quasi-interpolation operator with a bivariate Hermite interpolation polynomial.
Ruifeng Wu
doaj   +4 more sources

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

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   +6 more sources

A novel parameterized multiquadric quasi-interpolation operator with its optimal parameters

open access: yesResults in Applied Mathematics
The shape parameter c plays a crucial role in determining the accuracy and effectiveness of multiquadric quasi-interpolation algorithm. However, a few works discuss the shape parameter c in multiquadric quasi-interpolation operator.
Hualin Xiao, Dan Qu
doaj   +4 more sources

A kind of improved univariate multiquadric quasi-interpolation operators [PDF]

open access: yesComputers & Mathematics with Applications, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ren-Hong Wang 0001, Min Xu, Qin Fang
openaire   +2 more sources

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   +2 more sources

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   +2 more sources

Approximation to the k-th derivatives by multiquadric quasi-interpolation method [PDF]

open access: yesJournal of Computational and Applied Mathematics, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Limin Ma, Zongmin Wu
openaire   +3 more sources

A kind of improved bivariate even order Bernoulli-type multiquadric quasi-interpolation operator and its application in two-dimensional coupled Burgers’ equations

open access: yesBoundary Value Problems
Multiquadric quasi-interpolation is an efficient high-dimensional approximation algorithm. It can directly obtain the approximation term and its derivatives without solving any large-scale linear equations.
Ruifeng Wu
doaj   +2 more sources

High accuracy quasi-interpolation using a new class of generalized multiquadrics [PDF]

open access: yesJournal of Mathematical Analysis and Applications
A new generalization of multiquadric functions phi ( x ) = root c(2d) + || x ||(2d) , where x is an element of R-n , c is an element of R, d is an element of N, is presented to increase the accuracy of quasi -interpolation further. With the restriction to Euclidean spaces of odd dimensionality, the generalization can be used to generate a quasi ...
Ortmann, Mathis   +2 more
openaire   +5 more sources

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