نتایج جستجو برای: lagrange polynomials

تعداد نتایج: 46226  

Journal: :Symmetry 2022

Special polynomials play an important role in several subjects of mathematics, engineering, and theoretical physics. Many problems arising mathematical physics are framed terms differential equations. In this paper, we introduce the family Lagrange-based hypergeometric Bernoulli via generating function method. We state some algebraic properties for extensions polynomials, as well a matrix-inver...

In this paper, the system of Fredholm integral equations of the second kind is investigated by using a modified degenerate kernel  method (MDKM). To construct a MDKM the source function is approximated by the same way of producing degenerate kernel. The interpolation is used to make the needed approximations. Lagrange polynomials are adopted for the interpolation. The equivalency of  proposed m...

Journal: :Math. Comput. 1997
Suresh K. Lodha Ron Goldman

We present a unified framework for most of the known and a few new evaluation algorithms for multivariate polynomials expressed in a wide variety of bases including the Bernstein-Bézier, multinomial (or Taylor), Lagrange and Newton bases. This unification is achieved by considering evaluation algorithms for multivariate polynomials expressed in terms of Lbases, a class of bases that include the...

1994
YUAN XU

Lagrange interpolation by polynomials in several variables is studied through a finite difference approach. We establish an interpolation formula analogous to that of Newton and a remainder formula, both of them in terms of finite differences. We prove that the finite difference admits an integral representation involving simplex spline functions. In particular, this provides a remainder formul...

Journal: :Applied Mathematics and Computation 2009
Donatella Occorsio

The author studies the uniform convergence of extended Lagrange interpolation processes based on the zeros of Generalized Laguerre polynomials. 2009 Elsevier Inc. All rights reserved.

Journal: :J. Applied Mathematics 2012
Jiankang Liu Zhoushun Zheng Qinwu Xu

A new numerical method based on Bernstein polynomials expansion is proposed for solving onedimensional elliptic interface problems. Both Galerkin formulation and collocation formulation are constructed to determine the expansion coefficients. In Galerkin formulation, the flux jump condition can be imposed by the weak formulation naturally. In collocation formulation, the results obtained by B-p...

Journal: :Math. Comput. 1997
Sven Ehrich Giuseppe Mastroianni

Bounds are proved for the Stieltjes polynomial En+1, and lower bounds are proved for the distances of consecutive zeros of the Stieltjes polynomials and the Legendre polynomials Pn. This sharpens a known interlacing result of Szegö. As a byproduct, bounds are obtained for the Geronimus polynomials Gn. Applying these results, convergence theorems are proved for the Lagrange interpolation process...

Journal: :bulletin of the iranian mathematical society 2011
h. marzban h. tabrizidooz

properties of the hybrid of block-pulse functions and lagrange polynomials based on the legendre-gauss-type points are investigated and utilized to define the composite interpolation operator as an extension of the well-known legendre interpolation operator. the uniqueness and interpolating properties are discussed and the corresponding differentiation matrix is also introduced. the appli...

Journal: :bulletin of the iranian mathematical society 0
h. marzban h. tabrizidooz

properties of the hybrid of block-pulse functions and lagrange polynomials based on the legendre-gauss-type points are investigated and utilized to define the composite interpolation operator as an extension of the well-known legendre interpolation operator. the uniqueness and interpolating properties are discussed and the corresponding differentiation matrix is also introduced. the applicabili...

Journal: :Bulletin of the American Mathematical Society 1939

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