Quadrature formulas with exterior nodes
Abstract AuthorsD.V.Ionescu Institutul de Calcul Keywords? Paper coordinatesD.V. Ionescu, Quadrature formulas with exterior nodes, (in Romanian) Stud. Cerc. Mat. (Cluj) 9 1958…
works
The fundamental theorem on implicit functions
Abstract AuthorsD.V.Ionescu Institutul de Calcul Keywords? Paper coordinatesD.V. Ionescu, The fundamental theorem on implicit functions, (in Romanian) Inst. Politehn. Cluj. Lucrari…
Applying numerical derivative formulas to numerical integration of differential equations
Abstract AuthorsD.V. Ionescu Institutul de Calcul Keywords? Paper coordinatesD.V. Ionescu, Applying numerical derivative formulas to numerical integration of differential equations, în…
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…
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…