Results 131 to 140 of about 2,351 (152)

Starlikeness and close-to-convexity involving certain differential inequalities

Studia Universitatis Babeş-Bolyai. Mathematica
In the present paper, we study certain differential inequalities involving meromorphic functions in the open unit disk and obtain certain sufficient conditions for starlikeness and close-to-convexity of meromorphic functions.
Kuldeep Kaur Shergill, S. S. Billing
semanticscholar   +1 more source

A Special Class of Harmonic Univalent Functions

Sarajevo Journal of Mathematics
We define and investigate a special class of Salagean-type harmonic univalent functions in the open unit disk. We obtain coefficient conditions, extreme points, distortion bounds, convex combinations for the above class of harmonic univalent functions.  
Tuğba Gencel, S. Yalçın
semanticscholar   +1 more source

Coefficient bounds for certain subclasses of bi-univalent functions

, 2016
Andy Liew Pik Hern, A. Janteng
semanticscholar   +1 more source

Coefficient estimates for some subclasses of m-fold symmetric bi-univalent functions

, 2018
H. Srivastava, A. Zireh, Saideh Hajiparvaneh   +2 more
semanticscholar   +1 more source

On sandwich results of univalent functions defined by a linear operator

Journal of Interdisciplinary Mathematics, 2020
Waggas Galib Atshan
exaly  

Convolutions of planar harmonic convex mappings

Complex Variables and Elliptic Equations, 2001
Michael Dorff
exaly  

Subordinants of differential superordinations

Complex Variables and Elliptic Equations, 2003
Sanford S Miller
exaly  

Convolutions of harmonic convex mappings

Complex Variables and Elliptic Equations, 2012
Michael Dorff, Maria Nowak
exaly  

Coefficient bounds for a subclass of Bi-univalent functions

, 2014
C. Selvaraj, T. Kumar, G. Thirupathi
semanticscholar   +1 more source

Certain geometric properties of the Mittag-Leffler functions

Complex Variables and Elliptic Equations, 2016
Jugal Kishore Prajapat
exaly