Results 81 to 90 of about 3,329 (222)

On the hadamard products of Schlicht functions and applications

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1985
We show that each of the schlicht classes of starlike, convex, close-to-convex and strongly starlike with respect to symmetric points is invariant under the Hadamard product with the class of convex functions.
H. S. Al-Amiri
doaj   +1 more source

Inclusion Theorems of Certain Integral Transform Related to Normalized Hypergeometric Functions and Generalized Bessel Functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2025, Issue 1, 2025.
This study explores the geometric properties of normalized Gaussian hypergeometric functions in a certain subclass of analytic functions. This work investigates the inclusion properties of integral operators associated with generalized Bessel functions of the first kind.
Manas Kumar Giri   +2 more
wiley   +1 more source

On Starlike and Convex Functions with Respect to 2k-Symmetric Conjugate Points

open access: yes, 2016
[[abstract]]In the present paper, two new classes S(k) sc () and C(k) sc () of func- tions starlike and convex with respect to 2k-symmetric conjugate points are introduced.
Wang, Zhi-gang, Gao, Chun-yi
core  

Characterization of transmission irregular starlike and double starlike trees

open access: yesComputational and Applied Mathematics
The transmission of a vertex in a connected graph is the sum of its distances to all the other vertices. A graph is transmission irregular (TI) when all of its vertices have mutually distinct transmissions. In an earlier paper, Al-Yakoob and Stevanović [Appl. Math. Comput.
openaire   +3 more sources

Geometric Properties of New Subclasses of Meromorphic Harmonic Functions Associated With Janowski Functions Defined by q‐Calculus

open access: yesJournal of Function Spaces, Volume 2025, Issue 1, 2025.
This paper establishes new applications of q‐calculus for meromorphic harmonic functions, utilizing concepts of convolutions, subordination, and the q‐difference operator. We introduce the q‐Ruscheweyh‐type derivative operator for meromorphic harmonic functions and utilize it to define and explore novel subclasses related to Janowski functions.
Ahmad A. Abubaker, Abdul Rauf Khan
wiley   +1 more source

Radius Results for Certain Strongly Starlike Functions

open access: yes, 2023
This article comprises the study of strongly starlike functions which are defined by using the concept of subordination. The function φ defined by φ(ζ)=(1+ζ)λ, 0<λ<1 maps the open unit disk in the complex plane to a ...
Qin Xin   +4 more
core   +1 more source

Subclass of harmonic starlike functions associated with salagean derivative

open access: yesLe Matematiche, 2014
The purpose of the present paper is to establish some results involving coefficient conditions, distortion bounds, extreme points, convolution, and convex combinations for a new class of harmonic univalent functions in the open unit disc \ associated ...
H. E. Darwish   +2 more
doaj  

On α-Pseudo Spiralike Functions Associated with Exponential Pareto Distribution (EPD) and Libera Integral Operator

open access: yesMathematics
The present study aims at investigating some characterizations of a new subclass Gα(μ,τ) and obtaining the bounds on the first two Taylor–Maclaurin coefficients for functions belonging to the newly introduced subclass.
Jamiu Olusegun Hamzat   +3 more
doaj   +1 more source

Weakly starlike meromorphic univalent functions

open access: yes, 1975
A weakly starlike meromorphic univalent function is one of the form f ( z ) = − ρ z g ( z ) [ ( z − ρ ) (
Albert E. Livingston, Richard J. Libera
core   +1 more source

Approximation and geometric properties of some complex Bernstein-Stancu polynomials in compact disks

open access: yesJournal of Numerical Analysis and Approximation Theory, 2007
In this paper, the order of simultaneous approximation, convergence results of the iterates and shape preserving properties, for complex Bernstein-Stancu polynomials (depending on one parameter) attached to analytic functions on compact disks are ...
Sorin G. Gal
doaj   +2 more sources

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