6 citations · 6 across the 8 of their papers we have counts for
8 papers
Extension properties for monotone and sublinear operators
Sorin G. Gal
In this paper we obtain several extension properties for monotone and sublinear operators. The results obtained generalize those known for positive and linear operators.
Nonlinear operator extensions of Korovkin's theorems
Sorin G. Gal, Constantin P. Niculescu
In this paper we extend Korovkin's theorem to the context of sequences of weakly nonlinear and monotone operators defined on certain Banach function spaces. Several examples illust…
Korovkin type theorems for weakly nonlinear and monotone operators
Sorin G. Gal, Constantin P. Niculescu
In this paper we prove analogues of Korovkin's theorem in the context of weakly nonlinear and monotone operators acting on Banach lattices of functions of several variables. Our re…
On the Constant in The Lower Estimate for the Bernstein Operator
Sorin Gal, Gancho Tachev
For functions belonging to the classes and , we establish the lower estimate with an explicit constant in approximation by Bernstein polynomials in terms…
On Some Geometric Properties of Slice Regular Functions of a Quaternion Variable
Sorin G. Gal, J. Oscar González-Cervantes, Irene Sabadini
The goal of this paper is to introduce and study some geometric properties of slice regular functions of quaternion variable like univalence, subordination, starlikeness, convexity…
On the Kurzweil-Henstock integral in probability
Sorin G. Gal
By using the method in [5], the aim of the present note is to generalize the Riemann integral in probability introduced in [7], to Kurzweil-Henstock integral in probability. Proper…