4 papers
Geometric Properties of Bessel function derivatives
Erhan Deniz, Sercan Topkaya, Murat Çağlar
In this paper our aim is to find the radii of starlikeness and convexity of Bessel function derivatives for three different kind of normalization. The key tools in the proof of our…
Radii of starlikeness and convexity of regular Coulomb wave functions
Árpád Baricz, Murat Çağlar, Erhan Deniz +1
In this paper our aim is to determine the radii of univalence, starlikeness and convexity of the normalized regular Coulomb wave functions for two different kinds of normalization.…
Some generalizations on the univalence of an integral operator and quasiconformal extensions
Murat Çağlar, Halit Orhan
By using the method of Loewner chains, we establish some sufficient conditions for the analyticity and univalency of functions defined by an integral operator. Also, we refine the…
Univalence Criteria and Quasiconformal Extensions
Murat Çağlar, Halit Orhan
In the present paper, we obtain a more general conditions for univalence of analytic functions in the open unit disk U. Also, we obtain a refinement to a quasiconformal extension c…