Results 141 to 150 of about 19,336 (224)

Coefficient Estimates for Meromorphic Bi-Univalent Functions

open access: yes, 2011
A univalent meromorphic function defined on $Δ:= \{z \in \mathbb{C ...
Halim, Suzeini Abd   +2 more
openaire   +2 more sources

Geometric properties of new subclass of univalent and bi-univalent functions associated with subordination and generalised differential operator [PDF]

open access: yes
Hence, motivated by the generalised differential operator in the second objective, this study proposed a new generalised differential operator by utilising the binomial series.
Rossdy, Munirah
core  

Coefficients Of The Inverse Of Strongly Starlike Functions. [PDF]

open access: yes, 2003
For the class of strongly starlike functions, sharp bounds on the first four coefficients of the inverse functions are determined. A sharp estimate for the Fekete-Szego coefficient functional is also obtained.
M. Ali, Roslhan
core  

Gegenbauer Polynomials for a Subfamily of Bi-univalent Functions

open access: yesEarthline Journal of Mathematical Sciences
We study a subfamily of bi-univalent and regular functions in the open unit disk subordinate to Gegenbauer polynomials. For functions in the defined subfamily, we derive initial coefficients bounds. Additionally, the Fekete-Szegö problem is handled for the elements of the defined subfamily.
Sondekola Rudra Swamy   +3 more
openaire   +1 more source

Coefficient Estimates for Bi-Univalent Bazilevic Functions

open access: yesAnalysis in Theory and Applications, 2014
In this paper we consider the class of Bazilevic functions for bi-univalent functions. For this we will estimate the coefficients $a_2$ and $a_3$ using Caratheodory functions and the method of differential subordination.
openaire   +1 more source

Coefficient estimate of bi-Bazilevic function defined by Srivastava-Attiya operator

open access: yesLe Matematiche, 2014
In this paper, we introduce and investigate two new subclasses of the functionclass\sigma of bi-univalent functions dened in the open unit disk, which are associated with thegeneralized Srivastava-Attiya operator, satisfying subordinate conditions ...
Gangaharan Murugu Sundaramoorthy
doaj  

Initial Coefficient Bounds for a General Class of Bi-Univalent Functions

open access: yes, 2015
Recently, Srivastava et al. [22] reviewed the study of coefficient problems for bi-univalent functions. Inspired by the pioneering work of Srivastava et al.
ORHAN, Halit, Balaji, V. K., Magesh, N.
core   +1 more source

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