On the characteristic function and the resolving kernel of a given kernel
Original title (in French)Sur la fonction caractéristique et le noyau résolvant d’un noyau donné Abstract AuthorsD.V. Ionescu Institutul de Calcul…
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Some existence theorems of integrals of systems of differential equations
Original title (in French)Quelques théorèmes d’existence des intégrales des systèmes d’équations différentielles Abstract AuthorsD.V. Ionescu Dumitru V. Ionescu (1901-1985) Keywords?…
On Lord Kelvin’s theorem
Original title (in French)Sur théorème de Lord Kelvin Abstract AuthorsD.V. Ionescu Institutul de Calcul Keywords? Paper coordinatesD.V. Ionescu, Sur théorème…
Integration of a partial derivative equation involved in the problem of calculating thermal stresses in the boiling tubes of forced-flow boilers and radiant boilers
Original title (in Romanian)Integrarea unei ecuaţii cu derivate parţiale care intervine în problema calculului tensiunilor termice în tuburile fierbătoare ale…
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.…
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…
Application of the representation of the divided differences of a function, by a definite integral, to certain numerical derivation formulas of L’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,…
Two complementary approaches of the periodicity detection in astronomical time series
Abstract Estimation of the statistical significance of the peaks appearing in the spectra of various astronomical time series is essential…
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…
Chebfun approximation to structure of positive radial solutions for a class of supercritical semi-linear Dirichlet problems
Abstract We use the Chebfun programming package to approximate numerically the structure of the set of positive radial solutions for…