Results 81 to 89 of about 590 (89)

Geometric Properties for a family of p-valent Holomorphic Functions with Negative Coefficients for Operator on Hilbert Space

, 2018
A. Wanas, Sema Kadhim Jebur
semanticscholar   +1 more source

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Bohr–Rogosinski Phenomenon for $$\mathcal {S}^*(\psi )$$ and $$\mathcal {C}(\psi )$$

Mediterranean Journal of Mathematics, 2021
In Geometric function theory, occasionally attempts have been made to solve a particular problem for the Ma-Minda classes, S∗(ψ) and C(ψ) of univalent starlike and convex functions, respectively. Recently, a popular radius problem generally known as Bohr’
Kamaljeet Gangania, S. S. Kumar
semanticscholar   +1 more source

A Study On Coefficient Bounds for a Newly Defined Subfamily of Convex Functions

Physical Education, Health and Social Sciences
One of the most crucial problems in geometric function theory is the study of the Hankel determinant generated by the Maclaurin series of analytic functions that belong to particular classes of normalized univalent functions.
Kalsoom Bibi, Minal Khan, Ali Jan, Saba Gul, Khurshid Ahmad, M. Haq   +5 more
semanticscholar   +1 more source

Coefficient Inequalities for Certain Univalent Analytic Starlike And Convex Functions in Leaf Like Domain Through Jackson Q-Derivative Operator

International Journal of Latest Technology in Engineering Management & Applied Science
Two subclasses of starlike and convex functions analytic in the unit open disk using q-derivative operator have been investigated in the present paper. The necessary and sufficient condition for the function belonging to these classes have been obtained.
Sanjay Issar, Hemlata
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 estimates for some subclasses of m-fold symmetric bi-univalent functions

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

The second Hankel determinant of functions convex in one direction

, 2016
Marjono, D. K. Thomas
semanticscholar   +1 more source

Fractional q-differintegral operator related to univalent functions with negative coefficients

, 2020
S. Najafzadeh
semanticscholar   +1 more source

Coefficient estimates for a subclass of bi-univalent functions defined by Salagean operator using quasi subordination

, 2017
C. Ramachandran, D. Kavitha
semanticscholar   +1 more source