Results 71 to 80 of about 3,096,282 (119)

Fekete-Szegö inequalities for certain classes of biunivalent functions.

, 2014
We obtain the Fekete-Szegö inequalities for the classes S S,Σ (*)(α, ϕ) and £ S,Σ(α, ϕ) of biunivalent functions denoted by subordination. The results presented in this paper improve the recent work of Crisan (2013)
Altınkaya, Şahsene, Yalçın, Sibel
core   +1 more source

Exploring Fekete-Szegő inequalities for an admissible class of bi-univalent functions involved Gegenbauer polynomials

Arab Journal of Basic and Applied Sciences
This paper presents a newly defined subclass of bi-univalent functions linked to the Genenbauer polynomial. The functions in this subclass satisfy specific subordination conditions within a symmetric domain inside the open unit disk.
Sa’ud Al-Sa’di, Ibrar Ahmad, Muge Sakar, Saqib Hussain, Saima Noor   +4 more
doaj   +1 more source

Starlikeness associated with parabolic regions

International Journal of Mathematics and Mathematical Sciences, 2005
A parabolic starlike function f of order ρ in the unit disk is characterized by the fact that the quantity zf′(z)/f(z) lies in a given parabolic region in the right half-plane. Denote the class of such functions by PS∗(ρ).
Rosihan M. Ali
doaj   +1 more source

Kompleks mertebeli (p,q)-yıldızıl ve (p,q)-konveks fonksiyon sınıfları için Fekete-Szegö problemi

, 2020
Yeni bir sınıf olan kompleks mertebeli (p,q)-yıldızıl ve (p,q)-konveks fonksiyon sınıfları için Fekete-Szegö Problemini incelemek amaçlanmıştır. Yöntem: Matematiksel araştırmalardaki yöntem tümden gelimdir.
FEYZA YATKIN
core  

Fekete-Szegö problems for generalized Sakaguchi type functions associated with quasi-subordination [PDF]

, 2018
In the present paper, the authors introduce a generalized Sakaguchi type non-Bazilevic function class Mλ,β (φ, s, t) of analytic functions involving quasi-subordination and obtain bounds for the Fekete-Szegö functional |a3 −µa2 for the functions ...
PANIGRAHI, Trailokya, RAINA, Ravinder Krishna   +1 more
core   +1 more source

Starlikeness and convexity of a class of analytic functions

International Journal of Mathematics and Mathematical Sciences, 2006
Let be the class of analytic functions in the unit disk that are normalized with f(0)=f′(0)−1=0 and let −1 ...
Nikola Tuneski, Hüseyin Irmak
doaj   +1 more source

Fekete-Szegö problem for a class of analytic functions defined by Carlson-Shaffer operator [PDF]

, 2018
In the present paper, authors study a Fekete-Szegö problem for a class of analytic functions defined by Carlson-Shaffer operator. Relevant connections of the results presented here with various known results are briefly indicated.
PORWAL, Saurabh, KUMAR, Kaushal
core   +1 more source

Fekete-Szegö problems for certain class of analytic functions associated with quasi-subordination [PDF]

, 2017
In this paper, we determine the coefficient estimates and the Fekete-Szegö inequalities for $\mathcal{M}_{q}^{\alpha}(\gamma, \lambda, \phi)$, the class of analytic and univalent functions associated with quasi ...
Sahoo, P.
core   +1 more source

Certain New Applications of Symmetric q-Calculus for New Subclasses of Multivalent Functions Associated with the Cardioid Domain

Axioms
In this work, we study some new applications of symmetric quantum calculus in the field of Geometric Function Theory. We use the cardioid domain and the symmetric quantum difference operator to generate new classes of multivalent q-starlike and q-convex ...
Hari M. Srivastava, Daniel Breaz, Shahid Khan, Fairouz Tchier   +3 more
doaj   +1 more source

Applications of Bernoulli Polynomials and q²-Srivastava–Attiya Operator in the Study of Bi-Univalent Function Classes

Mathematics
The central focus of this study is the development and investigation of a generalized subclass of bi-univalent functions, defined using the q2-Srivastava–Attiya operator in conjunction with Bernoulli polynomials.
Basem Aref Frasin, Sondekola Rudra Swamy, Ibtisam Aldawish, Paduvalapattana Kempegowda Mamatha   +3 more
doaj   +1 more source