Research in the field of mathematics
Abstract AuthorsDumitru V. Ionescu Dumitru V. Ionescu Keywords? Paper coordinatesD.V. Ionescu, Division of polynomials, (Secţia de matematică a Filialei Academiei R.P.R. din…
works
Representation as a double integral of the divided difference of order (m,n) of a function of two variables. II.
Abstract AuthorsD.V. Ionescu Institutul de Calcul Keywords? Paper coordinatesD.V. Ionescu, Representation as a double integral of the divided difference of order…
The remainder term in Adams numerical integration formula
Abstract AuthorsD.V. Ionescu Institutul de Calcul Keywords? Paper coordinatesD.V. Ionescu, The remainder term in Adams numerical integration formula, (Russian) Ž. Vyčisl. Mat.…
Localization of critical points in annular conical sets via the method of Nehari manifold
AbstractUsing the Nehari manifold method, we establish sufficient conditions such that a smooth functional attains a ground state within an…
Free-surface equatorial flows with surface tension in spherical coordinates
AbstractIn this paper, we determine an exact solution to the governing equations in spherical coordinates for an inviscid, incompressible fluid.…
Critical point localization and multiplicity results in Banach spaces via Nehari manifold technique
AbstractIn the paper, results on the existence of critical points in annular subsets of a cone are obtained with the…
Control of Semilinear Differential Equations with Moving Singularities
AbstractIn this paper, we present a control problem related to a semilinear differential equation with a moving singularity, i.e., the…
A generalisation of the quadrature formule of Simpson, Newton and Milne
Abstract AuthorsD.V. Ionescu Institutul de Calcul Keywords? Paper coordinatesD.V. Ionescu, A generalisation of the quadrature formule of Simpson, Newton and Milne, Soobsc.…
Practical methods for the numerical integration of first-order differential equations
Abstract AuthorsD.V. Ionescu Institutul de Calcul Keywords? Paper coordinatesD.V. Ionescu, Practical methods for the numerical integration of first-order differential equations, C.…
Generalization of a numerical derivation formula by V. N. Fadeeva
Abstract AuthorsDumitru V. Ionescu Institutul de Calcul Dumitru V. Ionescu Keywords? Paper coordinatesD.V. Ionescu, Generalisation d’une formule de derivation numerique…