2 citations · 2 across the 11 of their papers we have counts for
11 papers
First-order Schwartian derivative and some classes of univalent functions
Milutin Obradovic, Nikola Tuneski
In this paper we give estimate of , where is the Schwartian derivative,…
On some properties of bi-univalent functions in the unit disc
Milutin Obradović, Nikola Tuneski, Paweł Zaprawa
In this paper we use a method based on the Grunsky coefficients to find upper bounds of the modulus of the initial coefficients, difference of the moduli of two consecutive initial…
On some properties of logarithmic coefficients of inverse of univalent functions
Milutin Obradović, Nikola Tuneski, Paweł Zaprawa
In this paper we consider some properties of the initial logarithmic coefficients for inverse functions of functions univalent in the unit disc. The case of convex functions is tre…
Toeplitz and symmetric Toeplitz determinants for inverse functions of certain classes of univalent functions
Milutin Obradović, Nikola Tuneski
In this paper we investigate Toeplitz and symmetric Toeplitz determinants of inverse functions for some classes of univalent functions and improve some previous results.
Symmetric Toeplitz determinants of some classes of univalent functions
Milutin Obradović, Nikola Tuneski
In this paper, we consider estimates of symmetric Toeplitz determinants for the class and for the general class for certain values of …
Improvements of certain results of the class of univalent functions
Milutin Obradović, Nikola Tuneski
For , the class univalent functions in the unit disk and given by for , we improve previous bou…
An improvement of the estimates of the modulus of the Hankel determinants of second and third order for the class of univalent functions
Milutin Obradović, Nikola Tuneski
Using some properties of the Grunsky coefficients we improve earlier results for upper bounds of the Hankel determinants of the second and third order for the class o…
New criteria for starlikeness in the unit disc
Milutin Obradović, Nikola Tuneski
It is well-known that the condition , , implies that is starlike function (i.e. convexity implies s…
On the difference of the moduli of the two initial logarithmic coefficients
Milutin Obradović, Nikola Tuneski
In this paper, we give sharp bounds of the difference of the moduli of the second and the first logarithmic coefficient for the functions on the class , for the -con…
Sharp bounds of logarithmic coefficients for a class of univalent functions
Milutin Obradović, Nikola Tuneski
Let , , be the class of functions satisfying i…
Improved bounds of the third Hankel determinant for classes of univalent functions with bounded turning
Milutin Obradović, Nikola Tuneski, Pawel Zaprawa
In this paper we improve the bounds of the third order Hankel determinant for two classes of univalent functions with bounded turning. The bounds are not sharp, but the sharp ones…