in Sobolev spaces Page 1 Journal of Computational and Applied Mathematics 43 (1992) 53-80
53 North-Holland CAM 1242 Polynomial interpolation results in Sobolev spaces Christine …

We study interpolation polynomials based on the points in [− 1, 1]×[− 1, 1] that are common
zeros of quasi-orthogonal Chebyshev polynomials and nodes of near minimal degree …

In the paper [Y. Xu, Lagrange interpolation on Chebyshev points of two variables, J. Approx.
Theory 87 (1996) 220–238], the author introduced a set of Chebyshev-like points for …

On Some Multivariate Quadratic Spline Quasi-Interpolants on Bounded Domains Page 1
International Series of Numerical Mathematics Vol. 145, @2003 Birkhiiuser Verlag Basel/Switzerland …

In this paper we study the remainder of interpolatory quadrature formulae. For this purpose
we develop a simple but quite general comparison technique for linear functionals. Applied …

Let∏ n− 1 [f] be the polynomial of degree n− 1 interpolating the function f at the points x1,
x2,…, xn with Pn (xi)= 0, ie, at the nodes of the classical Gaussian quadrature formula. For …

The Padua points are a family of points on the square [− 1, 1] 2 given by explicit formulas
that admits unique Lagrange interpolation by bivariate polynomials. Interpolation …

Univariate and multivariate quadratic spline quasi-interpolants provide interesting
approximation formulas for derivatives of approximated functions that can be very accurate …

The accuracy of interpolation by a radial basis function $\phi $ is usually very satisfactory
provided that the approximant $ f $ is reasonably smooth. However, for functions which have …

Dedicated to Professor DD Stancu on his 80th birthday Abstract. Using the connection
between optimal approximation of linear operators and spline interpolation established by IJ …