Extension of a cubature formula
Abstract AuthorsD.V. Ionescu Institutul de Calcul Keywords? Paper coordinatesD.V. Ionescu, Extension of a cubature formula, Acad. Roy. Belg. Bull. Cl. Sci.…
Approximation Theory
The divided difference of a function of three variables and its representation by a triple integral
Abstract AuthorsD.V. Ionescu Tiberiu Popoviciu Institute of Numerical Analysis Keywords? Paper coordinatesD.V. Ionescu, The divided difference of a function of three…
The divided difference of order n of a function of p variables and its representation by a multiple integral
Abstract AuthorsD.V. Ionescu Institutul de Calcul Keywords? Paper coordinatesD.V. Ionescu, The divided difference of order n of a function of…
A new extension of the Lacroix quadrature formula
Abstract AuthorsD.V. Ionescu https://ictp.acad.ro/dumitru-v-ionescu A. Coţiu Keywords? Paper coordinatesD.V. Ionescu, A. Cotiu, Une nouvelle extension de la formule de quadrature de…
On a class of cubature formulae for triple integrals
Abstract AuthorsD.V. Ionescu Institutul de Calcul Keywords? Paper coordinatesD.V. Ionescu, On a class of cubature formulae for tripe integrals, C.…
Extension of the Newton quadrature formula
Abstract AuthorsD. V. Ionescu Institutul de Calcul P. Pavel Keywords? Paper coordinatesD. V. Ionescu, P. Pavel, Extension de la formule de quadrature…
Szász–Mirakjan–Durrmeyer operators defined by multiple Appell polynomials
Abstract The paper aims at approximating functions through a sequence of linear positive operators of continuous type. First we define…
Spherical Shepard-Bernoulli operator
AbstractWe consider the problem of interpolating large sets of scattered data on the sphere using Shepard-Bernoulli operators constructed based on…
On a generalization of the Gauss formula for numerical integration
Abstract ? AuthorsTiberiu Popoviciu (Institutul de Calcul) Original title (in Romanian)T. Popoviciu, Asupra unei generalizări a formulei de integrare numerică…
Univariate Shepard operators combined with least squares fitting polynomials
Abstract We obtain new univariate Shepard operators using polynomials that are constructed such that they fit the interpolation data in…