Results 101 to 110 of about 4,110 (218)

Bazilevic functions of type β

International Journal of Mathematics and Mathematical Sciences, 1982
In this paper, a new coefficient result for the Bazileviĉ functions of type β is obtained.
K. Inayat Noor
doaj   +1 more source

A criterion for p-valently starlike functions

, 1994
The object of the present paper is to prove a criterion for p-valently starlike functions in the open unit ...
Shigeyoshi Owa, Mamoru Nunokawa, Seiichi Fukui   +2 more
core   +1 more source

The Coefficients Of Functions With Positive Real Part And Some Special Classes Of Univalent Functions. [PDF]

, 2003
Several special classes of univalent functions f in the unit disk U are characterized by the quantity zf'(z)/ f (z) lies in a given region in the right-half plane.
M. Ali, Rosihan
core   +1 more source

Inequalities of a Class of Analytic Functions Involving Multiplicative Derivative

Mathematics
Using the concepts of multiplicative calculus and subordination of analytic functions, we define a new class of starlike bi-univalent functions based on a symmetric operator, which involved the three parameter Mittag-Leffler function.
Kadhavoor R. Karthikeyan, Daniel Breaz, Gangadharan Murugusundaramoorthy, Ganapathi Thirupathi   +3 more
doaj   +1 more source

Some Coefficient Inequalities of q-Starlike Functions Associated with Conic Domain Defined by q-Derivative

Journal of Function Spaces, 2018
This article deals with q-starlike functions associated with conic domains, defined by Janowski functions. It generalizes the recent study of q-starlike functions while associating it with the conic domains.
Shahid Mahmood, Mehwish Jabeen, Sarfraz Nawaz Malik, H. M. Srivastava, Rabbiya Manzoor, S. M. Jawwad Riaz   +5 more
doaj   +1 more source

Palindromes in starlike trees [PDF]

, 2019
In this note, we obtain an upper bound on the maximum number of distinct non-empty palindromes in starlike trees. This bound implies, in particular, that there are at most 4 n distinct non-empty palindromes in a starlike tree with three branches each of ...
Smyth, W.F., Simpson, J., Glen, A.
core  

A Class of Starlike Functions

Rocky Mountain Journal of Mathematics, 1993
Let \(S^*\) be the usual class of starlike functions, i.e. \(f(z)\) of the form \(z+a_ 2 z^ 2\dots\) which are analytic and univalent in the unit disc \(U\) and which map \(U\) onto a domain starshaped with respect to the origin.
openaire   +2 more sources

Several Subordination Features Using Bessel-Type Operator

Mathematics
For the function solution to the well-known homogeneous Bessel differential equation, we utilized a normalized form of this function to define a certain operator on a subclass of analytic functions.
Rabab Alyusof, Rabha M. El-Ashwah, Alaa H. El-Qadeem   +2 more
doaj   +1 more source

Starlike and Convex Properties for Hypergeometric Functions [PDF]

, 2008
The purpose of the present paper is to give some characterizations for a (Gaussian) hypergeometric function to be in various subclasses of starlike and convex functions.
Nak Eun Cho, Oh Sang Kwon
core   +1 more source

Some Evaluations About Coefficients Boundaries for Specific Classes of Bi-Univalent Functions

Axioms
New subclasses of bi-univalent functions with bounded boundary rotation are presented in this study. We acquired estimates for the initial coefficients a2, a3 and a4.
Suliman M. Sowileh, Gangadharan Murugusundaramoorthy, Borhen Halouani, Ibrahim S. Elshazly, Mohamed A. Mamon, Alaa H. El-Qadeem   +5 more
doaj   +1 more source