Results 11 to 20 of about 269,754 (160)

On third order Hankel determinant for inverse functions of certain classes of univalent functions [PDF]

open access: yesEuropean Journal of Mathematics and Applications, 2022
In this paper we determine the upper bounds for the Hankel determinant of third order for the inverse functions of functions from some classes of univalent functions.
Milutin Obradović, Nikola Tuneski
doaj   +3 more sources

Painlevé III′ and the Hankel determinant generated by a singularly perturbed Gaussian weight

open access: yesNuclear Physics B, 2018
In this paper, we study the Hankel determinant generated by a singularly perturbed Gaussian weightw(x,t)=e−x2−tx2,x∈(−∞,∞),t>0. By using the ladder operator approach associated with the orthogonal polynomials, we show that the logarithmic derivative of ...
Chao Min, Shulin Lyu, Yang Chen
doaj   +2 more sources

Third Hankel Determinant for a Subclass of Univalent Functions Associated with Lemniscate of Bernoulli

open access: yesFractal and Fractional, 2022
This paper deals with a new subclass of univalent function associated with the right half of the lemniscate of Bernoulli. We find the upper bound of the Hankel determinant H3(1) for this subclass by applying the Carlson–Shaffer operator to it.
Najeeb Ullah   +5 more
doaj   +2 more sources

The Second Hankel Determinant Problem for a Class of Bi-Univalent Functions [PDF]

open access: yesJournal of Mathematical and Fundamental Sciences, 2019
Hankel matrices are related to a wide range of disparate determinant computations and algorithms and some very attractive computational properties are allocated to them.
Mohammad Hasan Khani   +2 more
doaj   +2 more sources

Hankel Determinant for a Class of Analytic Functions Related with Lemniscate of Bernoulli [PDF]

open access: yesInternational Journal of Analysis and Applications, 2014
The object of the present investigation is to solve Fekete-Szegö problem and determine the sharp upper bound to the second Hankel determinant for a new class R of analytic functions in the unit disk.
Ashok Kumar Sahoo, Jagannath Patel
doaj   +3 more sources

Painlevé V and the Hankel determinant for a singularly perturbed Jacobi weight

open access: yesNuclear Physics B, 2020
We study the Hankel determinant generated by a singularly perturbed Jacobi weightw(x,t):=(1−x2)αe−tx2,x∈[−1,1],α>0,t≥0. If t=0, it is reduced to the classical symmetric Jacobi weight.
Chao Min, Yang Chen
doaj   +1 more source

Integrable operators and squares of Hankel operators. [PDF]

open access: yes, 2008
Integrable operators arise in random matrix teory, where they describe the asymptotic distributions of large self-adjoint random matrices from the generalized unitary ensembles.
Blower, Gordon
core   +4 more sources

Sharp Bounds for the Second Hankel Determinant of Logarithmic Coefficients for Strongly Starlike and Strongly Convex Functions

open access: yesAxioms, 2022
The logarithmic coefficients are very essential in the problems of univalent functions theory. The importance of the logarithmic coefficients is due to the fact that the bounds on logarithmic coefficients of f can transfer to the Taylor coefficients of ...
Sevtap Sümer Eker   +3 more
doaj   +1 more source

A Study of Fourth Hankel Determinant of Certain Analytic Function [PDF]

open access: yes, 2021
The main motive of this paper is to nd an upper bound of the fourth Hankel determinant H 4;1 (f) for a subclass S; with hyperbolic ...
Frasin, Basem Aref   +4 more
core   +1 more source

Second Hankel Determinant for Analytic Functions Defined by Ruscheweyh Derivative [PDF]

open access: yesInternational Journal of Analysis and Applications, 2015
Let S denote the class of analytic and univalent functions in the open unit disk D= {z:|z|<1} with the normalization conditions. In the present article an upper bound for the second Hankel determinant |a₂a₄-a₃²| is obtained for the analytic functions ...
T. Yavuz
doaj   +1 more source

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