Approximation properties of a class of operators of Stancu-Kantorovich type
Abstract In this paper we consider an extension, in the sense of Kantorovich, of a linear positive operator of Bernstein…
not-at-ICTP
An inequality wich arises in the absence of the mountain pass geometry
Abstract An integral inequality is deduced from the negation of the geometrical condition in the bounded mountain pass theorem of…
Critical point localization theorems via Ekeland’s variational principle
Abstract In this paper some existence results for critical points of extremum in conical annular regions are established by Ekeland’s…
Generalizarea unor polinoame de interpolare pentru funcţiile de mai multe variabile
Abstract AuthorsDimitrie D. Stancu ”Babes-Bolyai” University, Cluj-Napoca, Romania Keywords? Paper coordinatesD.D. Stancu, Generalizarea unor polinoame de interpolare pentru funcţiile de mai…
Consideraţii asupra interpolării polinomiale a funcţiilor de mai multe variabile
Abstract AuthorsDimitrie D. Stancu ”Babes-Bolyai” University, Cluj-Napoca, Romania Keywords? Paper coordinatesD.D. Stancu, Consideraţii asupra interpolării polinomiale a funcţiilor de mai multe…
Asupra formulelor de cuadratură de tip Gauss
Abstract AuthorsDimitrie D. Stancu ”Babes-Bolyai” University, Cluj-Napoca, Romania Keywords? Paper coordinatesD.D. Stancu, Asupra formulelor de cuadratură de tip Gauss, Studia Univ.…
The combined Shepard operator of inverse quadratic and inverse multiquadric type
AbstractStarting with the classical, the modified and the iterative Shepard methods, we construct some new Shepard type operators, using the…
On some maximum problems of Stieltjes
Abstract AuthorsTiberiu Popoviciu Keywords? Paper coordinatesT. Popoviciu, Sur certaines problèmes de maximum de Stieltjes, Bull. Math. de la Soc. Roum.…
Positive solutions for discontinuous problems with applications to ϕ-Laplacian equations
Abstract We establish existence and localization of positive solutions for general discontinuous problems for which a Harnack-type inequality holds. In…
A Granas type approach to some continuation theorems and periodic boundary value problems with impulse
Abstract In this paper we study periodic solutions of a second order differential equation \[ x^{\prime\prime} = f(t, x, x^{\prime})…