Results 1 to 10 of about 10,063 (261)

The second and third Hankel determinants for starlike and convex functions associated with Three-Leaf function [PDF]

open access: yesHeliyon, 2023
In this paper, we give sharp bounds of the Hankel determinant H2(3)(f) for the coefficients of functions in the class of starlike functions related to a domain that is like three leaves.
A. Riaz   +3 more
semanticscholar   +2 more sources

Some General Classes of q-Starlike Functions Associated with the Janowski Functions

open access: yesSymmetry, 2019
By making use of the concept of basic (or q-) calculus, various families of q-extensions of starlike functions of order α in the open unit disk U were introduced and studied from many different viewpoints and perspectives.
Qazi Zahoor Ahmad   +2 more
exaly   +2 more sources

Hankel and Toeplitz Determinants for a Subclass of q-Starlike Functions Associated with a General Conic Domain

open access: yesMathematics, 2019
By using a certain general conic domain as well as the quantum (or q-) calculus, here we define and investigate a new subclass of normalized analytic and starlike functions in the open unit disk U .
Qazi Zahoor Ahmad   +2 more
exaly   +2 more sources

A New Measure of Quantum Starlike Functions Connected with Julia Functions

open access: yesJournal of Function Spaces, 2022
In a complex domain, the investigation of the quantum differential subordinations for starlike functions is newly considered by few research studies. In this note, we arrange a set of necessary conditions utilizing the concept of the quantum differential
Samir B. Hadid   +2 more
doaj   +2 more sources

Upper Bound of the Third Hankel Determinant for a Subclass of q-Starlike Functions

open access: yesSymmetry, 2019
The main purpose of this article is to find the upper bound of the third Hankel determinant for a family of q-starlike functions which are associated with the Ruscheweyh-type q-derivative operator.
Qazi Zahoor Ahmad   +2 more
exaly   +2 more sources

SECOND HANKEL DETERMINANT FOR LOGARITHMIC INVERSE COEFFICIENTS OF CONVEX AND STARLIKE FUNCTIONS [PDF]

open access: yesBulletin of the Australian Mathematical Society, 2023
We obtain sharp bounds for the second Hankel determinant of logarithmic inverse coefficients for starlike and convex functions.
V. Allu, Amal Shaji
semanticscholar   +1 more source

The second Hankel determinant of the logarithmic coefficients of strongly starlike and strongly convex functions

open access: yesRACSAM, 2023
Sharp bounds are given for the second Hankel determinant of the logarithmic coefficients of strongly starlike and strongly convex functions.
B. Kowalczyk, A. Lecko
semanticscholar   +1 more source

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

Second Hankel Determinant of Logarithmic Coefficients of Convex and Starlike Functions of Order Alpha

open access: yesBulletin of the Malaysian Mathematical Sciences Society, 2021
In the present paper, we found sharp bounds of the second Hankel determinant of logarithmic coefficients of starlike and convex functions of order α\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage ...
B. Kowalczyk, A. Lecko
semanticscholar   +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

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