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…
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Asymptotic properties of Kantorovich-type Szász–Mirakjan operators of higher order
Abstract In this paper we study local approximation properties of a higher order Kantorovich-type Szász–Mirakjan operator recently introduced by Sabancigil,…
Simultaneous approximation by Gauss–Weierstrass–Wachnicki operators
Abstract In this note, we spotlight a generalization of Weierstrass integral operators introduced by Eugeniusz Wachnicki. The construction involves modified…
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…
On some control problems for Kolmogorov type systems
Abstract The paper deals with some control problems related to the Kolmogorov system for two interacting populations. For the first…
On the localization and numerical computation of positive radial solutions for φ-Laplace equations in the annulus
Abstract The paper deals with the existence and localization of positive radial solutions for stationary partial differential equations involving a…
Contribuţii la derivarea parţială numerică a funcţiilor de două şi mai multe variabile
Abstract AuthorsDimitrie D. Stancu ”Babes-Bolyai” University, Cluj-Napoca, Romania Tiberiu Popoviciu Institute of Numerical Analysis Keywords? Paper coordinatesD.D. Stancu, Contribuţii la derivarea…
Asupra unei clase de polinoame ortogonale şi unor formule generale de cuadratură cu număr minim de termeni
Abstract AuthorsDimitrie D. Stancu ”Babes-Bolyai” University, Cluj-Napoca, Romania Institutul de Calcul (Tiberiu Popoviciu Institute of Numerical Analysis), Romanian Academy Keywords?…
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…