Results 21 to 30 of about 10,536,036 (281)

On sharp solutions to majorization and Fekete-Szegő problems for starlike functions

open access: yesMiskolc Mathematical Notes, 2023
. This paper is concerned with sharp solutions to majorization and Fekete-Szeg˝o problems for several relatively new normalized subfamilies of starlike functions.
Zhi-Gang Wang   +2 more
semanticscholar   +1 more source

The Properties of Meromorphic Multivalent q-Starlike Functions in the Janowski Domain

open access: yesFractal and Fractional, 2023
Many researchers have defined the q-analogous of differential and integral operators for analytic functions using the concept of quantum calculus in the geometric function theory.
Isra Al-shbeil   +5 more
semanticscholar   +1 more source

Radius Problems for Starlike Functions Associated with the Tan Hyperbolic Function

open access: yesJournal of Function Spaces, 2021
The aim of this particular article is at studying a holomorphic function f defined on the open-unit disc D=z∈ℂ ...
Khalil Ullah   +4 more
doaj   +1 more source

Odd Starlike Functions [PDF]

open access: yesProceedings of the American Mathematical Society, 1985
The authors show that for normalized odd starlike functions f(z) \[ Re(f(z)/S_ n(z,f))>,\quad | z|
Singh, Ram, Puri, Sangita
openaire   +1 more source

Analytic Functions Related with Starlikeness [PDF]

open access: yesMathematical Problems in Engineering, 2021
The aim of present investigation is to study a new class of analytic function related with the Sokol-Nunokawa class. We derived relationships of this class with strongly starlike functions and obtained many interesting results.
Syed Ghoos Ali Shah   +5 more
openaire   +1 more source

Properties of q-Symmetric Starlike Functions of Janowski Type

open access: yesSymmetry, 2022
The word “symmetry” is a Greek word that originated from “symmetria”. It means an agreement in dimensions, due proportion, and arrangement; however, in complex analysis, it means objects remaining invariant under some transformation.
Afis Saliu   +4 more
semanticscholar   +1 more source

Hankel and Symmetric Toeplitz Determinants for a New Subclass of q-Starlike Functions

open access: yesFractal and Fractional, 2022
This paper considers the basic concepts of q-calculus and the principle of subordination. We define a new subclass of q-starlike functions related to the Salagean q-differential operator.
Isra Al-shbeil   +6 more
semanticscholar   +1 more source

A unified representation of some starlike and convex harmonic functions with negative coefficients [PDF]

open access: yesOpuscula Mathematica, 2013
In this paper we introduce a unified representation of starlike and convex harmonic functions with negative coefficients, related to uniformly starlike and uniformly convex analytic functions.
R. M. El-Ashwah   +3 more
doaj   +1 more source

Hankel Determinants and Coefficient Estimates for Starlike Functions Related to Symmetric Booth Lemniscate

open access: yesSymmetry, 2022
In this paper, we find Hankel determinants and coefficient bounds for a subclass of starlike functions related to Booth lemniscate. In particular, we obtain the first four sharp coefficient bounds, Hankel determinants of order two and three, and Zalcman ...
Mohsan Raza, A. Riaz, Qin Xin, S. Malik
semanticscholar   +1 more source

Fourth Hankel Determinant for a Subclass of Starlike Functions Based on Modified Sigmoid

open access: yesJournal of Function Spaces, 2021
In our present investigation, we obtain the improved third-order Hankel determinant for a class of starlike functions connected with modified sigmoid functions.
Wali Khan Mashwani   +6 more
doaj   +1 more source

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