Results 51 to 60 of about 800 (107)

Shape preserving properties and convergence of univariate multiquadric quasi-interpolation

open access: yesActa Mathematicae Applicatae Sinica, 1994
The authors show that the quasi-interpolation with multiquadrics on scattered points preserves convexity, linearity and monotonicity. An error bound is also obtained.
Wu, Zongmin, Schaback, Robert
openaire   +2 more sources

A multiquadric quasi-interpolation with linear reproducing and preserving monotonicity

open access: yesJournal of Computational and Applied Mathematics, 2009
The authors develop a multiquadric quasi-interpolation which has the properties of linear reproducing and preserving monotonicity. Moreover, its approximation error is given by a theoretic analysis and illustrates the effect by means of two examples.
Chen, Ronghua, Han, Xuli, Wu, Zongmin
openaire   +2 more sources

Parametric Level Set Methods for Inverse Problems

open access: yes, 2011
In this paper, a parametric level set method for reconstruction of obstacles in general inverse problems is considered. General evolution equations for the reconstruction of unknown obstacles are derived in terms of the underlying level set parameters ...
Alireza Aghasi   +4 more
core   +1 more source

Applying multiquadric quasi-interpolation to solve Fokker-Planck equation

open access: yes, 2023
The Fokker-Planck equation (FPE) arises in various fields in physics, chemistry, natural science. It is difficult to obtain analytical solutions, accordingly we resort to numerical methods. In this study, we present a meshfree method to solve FPE. It is based on the multiquadric quasi-interpolation (MQQI) operator LW2 and collocation technique. Here, ?-
Rahimi, Mahbubeh   +2 more
openaire   +1 more source

A family of multivariate multiquadric quasi-interpolation operators with higher degree polynomial reproduction

open access: yesJournal of Computational and Applied Mathematics, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wu, Ruifeng, Wu, Tieru, Li, Huilai
openaire   +2 more sources

A quasi-interpolation scheme for periodic data based on multiquadric trigonometric B-splines

open access: yesJournal of Computational and Applied Mathematics, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wenwu Gao, Zongmin Wu
openaire   +2 more sources

Numerical investigation of Differential Biological-Models via GA-Kansa Method Inclusive Genetic Strategy

open access: yes, 2017
In this paper, we use Kansa method for solving the system of differential equations in the area of biology. One of the challenges in Kansa method is picking out an optimum value for Shape parameter in Radial Basis Function to achieve the best result of ...
Fallah, Mohammad Kazem   +2 more
core  

Using adomian’s decomposition and multiquadric quasi-interpolation methods for solving Newell–Whitehead equation

open access: yesProcedia Computer Science, 2011
AbstractIn this paper, we study numerical solution of the Newell–Whitehead equation (NWE) by using Adomian’s method (ADM) and Multiquadric quasi-interpolation method. ADM has been extensively used to solve linear and nonlinear problems arising many interesting physical and engineering applications.
Ezzati, R., Shakibi, K.
openaire   +1 more source

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