Results 81 to 90 of about 1,333 (181)

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

Close-to-starlike logharmonic mappings

International Journal of Mathematics and Mathematical Sciences, 1996
We consider logharmonic mappings of the form f=z|z|2βhg¯ defined on the unit disc U which can be written as the product of a logharmonic mapping with positive real part and a univalent starlike logharmonic mapping.
Zayid Abdulhadi
doaj   +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

Hankel and Toeplitz Determinants for q-Starlike Functions Involving a q-Analog Integral Operator and q-Exponential Function

Journal of Function Spaces
This article investigates the upper bounds of the second Hankel and Toeplitz determinants for a family of q-starlike functions defined by a q-analog integral operator, which is a more general form of the q-Srivastava-Attiya operator, and the q ...
Sarem H. Hadi, Maslina Darus, Rabha W. Ibrahim   +2 more
doaj   +1 more source

On the Gakhov Equation for the Biernacki Operator [PDF]

Учёные записки Казанского университета: Серия Физико-математические науки, 2015
The paper establishes the region in the parameter plane such that the image of any starlike function with the zero root of the Gakhov equation under the mapping by the Biernacki operator corresponding to the parameter of this region is found in the ...
A.V. Kazantsev
doaj  

Applications of q-Bessel-Struve Functions on Univalent Functions

Mathematics
In this paper, the authors derived some new sufficient conditions for q-close-to-convexity with respect to certain functions involving three different normalizations of q-Bessel–Struve functions.
Saddaf Noreen, Saiful R. Mondal, Muhey U. Din, Saima Mushtaq, Zhang Wei, Adil Murtaza   +5 more
doaj   +1 more source

On starlike functions [PDF]

Proceedings of the American Mathematical Society, 1968
openaire   +2 more sources

Correction to “On Logarithmic and Inverse Coefficients for Sakaguchi‐Type Starlike Functions Subordinated to a Petal‐Shaped Domain”

Journal of Function Spaces, Volume 2026, Issue 1, 2026.
wiley   +1 more source

On classes of non-univalent functions influenced by the multiplicative derivative

Frontiers in Applied Mathematics and Statistics
In this article, we extend studies on the class of starlike functions, motivated by the definition of the multiplicative derivative. In this direction, we define a new class by combining characterizations of starlike functions and a recently studied ...
Daniel Breaz, Kadhavoor R. Karthikeyan, Dharmaraj Mohankumar   +2 more
doaj   +1 more source

Formula for meromorphic symmetric differences operator with application in the theory of subordination inequality. [PDF]

Heliyon, 2023
Aldawish I.
europepmc   +1 more source