Results 61 to 70 of about 105 (90)

Matrices for the Direct Determination of the Barycentric Weights of Rational Interpolation

open access: yes, 1995
.- Let x 0 ; : : : ; xN be N +1 values of a real (or complex) variable x. Every rational interpolant r of a function f with numerator and denominator degrees N can be written in its barycentric form r(x) = N X k=0 u k x \Gamma x k f k , N X ...
Hans D. Mittelmann, Jean-Paul Berrut
core  

Harmonic interpolation based on Radon projections along the sides of regular polygons

open access: yesOpen Mathematics, 2013
Georgieva Irina   +4 more
doaj   +1 more source

Inequalities of Duffin- Schaeffer Type II

open access: yes, 2003
Mathematics Subject Classification: 41A05 ...
Nikolov, Geno
core  

Sparse Polynomial Interpolation in Non-standard Bases

open access: yes
In this paper, we consider the problem of interpolating univariate polynomials over a field of characteristic zero that are sparse in (a) the Pochhammer basis or, (b) the Chebyshev basis.
B. David Saunders, Y. N. Lakshman
core  

Bivariate Spline Interpolation with Optimal Approximation Order

open access: yes
Let \Delta be a triangulation of some polygonal domain\Omega ae R 2 and let S r q (\Delta) denote the space of all bivariate polynomial splines of smoothness r and degree q with respect to \Delta. We present a Hermite type interpolation scheme for S
G. Nürnberger   +2 more
core  

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