Results 31 to 40 of about 3,000,077 (274)

On the logarithmic coefficients of close to convex functions [PDF]

open access: yesProceedings of the American Mathematical Society, 2015
For $f$ analytic and close to convex in $D=\{z: |z|< 1\}$, we give sharp estimates for the logarithmic coefficients $γ_{n}$ of $f$ defined by $\log \dfrac{f(z)}{z}=2\sum_{n=1}^{\infty} γ_{n}z^{n}$ when $n=1, 2,3$.
D.K.Thomas
openaire   +5 more sources

Toeplitz determinants of logarithmic coefficients for starlike and convex functions

open access: yesBulletin des Sciences Mathématiques, 2023
In this study, we deal with the sharp bounds of certain Toeplitz determinants whose entries are the logarithmic coefficients of analytic univalent functions $f$ such that the quantity $z f'(z)/f(z)$ takes values in a specific domain lying in the right half plane.
Surya Giri, S. Sivaprasad Kumar
openaire   +3 more sources

On logarithmic coefficients of certain starlike functions related to the vertical strip [PDF]

open access: yesJournal of Analysis, 2018
In the present paper two certain subclasses of the starlike functions associated with the vertical strip are considered. The main aim of this paper is to investigate some basic properties of these classes such as, subordination relations, sharp ...
Rahim Kargar
exaly   +2 more sources

Second Hankel determinant of the logarithmic coefficients for a subclass of univalent functions

open access: yesMiskolc Mathematical Notes
In the present paper, we give the bounds for the second Hankel determinant of the logarithmic coefficients of a certain subclass of normalized univalent functions, which we have introduced here.
Hari Mohan Srivastava   +3 more
doaj   +2 more sources

On the curvature in logarithmic plots of rate coefficients for chemical reactions [PDF]

open access: yesChemistry Central Journal, 2011
In terms of the reduced potential energy barrier ζ = ΔuTS/kT, the rate coefficients for chemical reactions are usually expressed as proportional to e-ζ.
Canepa Carlo
doaj   +3 more sources

Inverse and Logarithmic Coefficient Bounds of Concave Univalent Functions

open access: yesAxioms
The concept of coefficient estimates on univalent functions is one of the interesting aspects explored recently by many researchers. Motivated by this direction, in this present work, we obtain the upper bounds of initial inverse coefficients and ...
Kuppusami Sakthivel   +2 more
doaj   +2 more sources

Second Hankel determinant of logarithmic coefficients of inverse functions in certain classes of univalent functions [PDF]

open access: yesLithuanian Mathematical Journal, 2023
The Hankel determinant H2,1Ff-1/2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin ...
Sanju Mandal, M. B. Ahamed
semanticscholar   +1 more source

SECOND-HANKEL DETERMINANT OF LOGARITHMIC COEFFICIENTS OF CERTAIN ANALYTIC FUNCTIONS

open access: yesRocky Mountain Journal of Mathematics
We consider a family of all analytic and univalent functions (i.e., one-to-one) in the unit disk $\mathbb{D}:=\{z\in \mathbb{C}:|z|<1\}$ of the form $f(z)=z+a_2z^2+a_3z^3+\cdots$. In this paper, we obtain the sharp bounds of the second Hankel determinant of Logarithmic coefficients for some subclasses of analytic functions.
Vasudevarao Allu
exaly   +3 more sources

The third logarithmic coefficient for the class S [PDF]

open access: yesTURKISH JOURNAL OF MATHEMATICS, 2020
In this paper we give an upper bound of the third logarithmic coefficient for the class $\mathcal{S}$ of univalent functions in the unit disc.
Milutin OBRADOVIĆ, Nikola TUNESKI
openaire   +3 more sources

Some New Inequalities on Laplace–Stieltjes Transforms Involving Logarithmic Growth

open access: yesFractal and Fractional, 2022
This article is devoted to exploring the properties on the logarithmic growth of entire functions represented by Laplace–Stieltjes transforms of zero order.
Hongyan Xu, Hong Li, Zuxing Xuan
doaj   +1 more source

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