On a D.V. Ionescu’s problem for functional-differential equations
Abstract The purpose of this paper is to study a generalization of a D.V. Ionescu’s problem. Existence, uniqueness and data…
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Integro-differential equation with two times modifications
Abstract We consider an integro-differential equation with two times modifications. Existence, uniqueness and monotony results of solution for the Cauchy…
Integro-Differential Equation with two time lags
Abstract We consider an integro-differential equation with two time lags and we prove the existence, uniqueness and convergence of the…
Exact solutions for differential equations in Celestial Mechanics
Abstract There are many problems in Celestial Mechanics which can be reduced to differential equations, either linear or nonlinear. We…
On a D.V. Ionescu’s problem for functional-differential equations of second order
Abstract Abstract. The paper is devoted to the study of the following D.V. Ionescu’s problem \[ \left \{ \begin{array} [l]{l}%…
Lotka, Volterra and their model
Abstract The chemist and statistician Lotka, as well as the mathematician Volterra, studied the ecological problem of a predator population…
Some variants of Ćirić’s multi-valued contraction principle
Abstract In this article, a study of the fixed point problem for Ciric type multi-valued operators is presented. More precisely, …
The Planar Inverse Problem of Dynamics
Abstract We consider the following version of the inverse problem of Dynamics: given a monoparametric family of planar curves, find…
Theoretical mechanics problems and exercises
Abstrait Traduction en anglais du titreTheoretical mechanics problems and exercises Auteur(s)Doina Bradeanu Institutul de Calcul Mots-clésPDFFichier scané Pour citer ce…
On Kantorovich-type Operators in Lp Spaces
Abstract This note is devoted to the study of a linear positive sequence of operators representing an integral form in…