4 papers · 1 filter
Higher-Order Schippers-Schwarzian Derivatives for Non-Circular Starlike Functions
Pradip Das, Paweł Zaprawa, Nabadwip Sarkar
We find sharp upper bounds for the initial higher-order Schippers-Schwarzian derivatives and for several subclasses of univalent and starlike functions in t…
Sharp inequalities for Logarithmic Coefficients for Certain Classes of Univalent Functions
Sanju Mandal, Molla Basir Ahamed, Paweł Zaprawa
Let denote the class of functions that are analytic and univalent in the open unit disk $\mathbb{D} = \{z \in \mathbb{C} : |z…
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…