On the Gauss quadrature formula
Abstract AuthorsD.V.Ionescu Institutul de Calcul Keywords? Paper coordinatesD.V. Ionescu, Sur la formule de quadrature de Gauss, (French) Mathematica (Cluj), 7 (30) 1965,…
Approximation Theory
Application of the representation of the divided differences of a function, by a definite integral, to certain numerical derivation formulas of Acad. T. Popoviciu
Abstract AuthorsD.V. Ionescu Institutul de Calcul Keywords? Paper coordinatesD.V. Ionescu, Application of the representation of the divided differences of a function,…
Extension of a Gaussian-type quadrature formula to a class of cubature formulas
Abstract AuthorsD.V. Ionescu Institutul de Calcul Keywords? Paper coordinatesD.V. Ionescu, Extension of a Gaussian-type quadrature formula to a class of cubature…
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.…
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…