Results 1 to 10 of about 8,275 (212)

Determinants of Hankel Matrices [PDF]

open access: bronzeJournal of Functional Analysis, 2000
The purpose of this paper is to compute asymptotically Hankel determinants for weights that are supported in a semi-infinite interval.The main idea is to reduce the problem to determinants of other operators whose determinant asymptotics are well known ...
Basor, Estelle L.   +2 more
core   +5 more sources

On the Hankel determinants of close-to-convex univalent functions [PDF]

open access: goldInternational Journal of Mathematics and Mathematical Sciences, 1980
The rate of growth of Hankel determinant for close-to-convex functions is determined. The results in this paper are best possible.
K. Inayat Noor
doaj   +4 more sources

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.
Amina Riaz   +3 more
doaj   +2 more sources

A remark on the Hankel determinant formula for solutions of the Toda equation [PDF]

open access: green, 2007
We consider the Hankel determinant formula of the $\tau$ functions of the Toda equation. We present a relationship between the determinant formula and the auxiliary linear problem, which is characterized by a compact formula for the $\tau$ functions in ...
Fadeev L D   +18 more
core   +3 more sources

Third Hankel Determinant for the Logarithmic Coefficients of Starlike Functions Associated with Sine Function [PDF]

open access: goldFractal and Fractional, 2022
The logarithmic functions have been used in a verity of areas of mathematics and other sciences. As far as we know, no one has used the coefficients of logarithmic functions to determine the bounds for the third Hankel determinant.
Bilal Khan   +3 more
doaj   +2 more sources

Hankel Determinant Calculus for the Thue-Morse and related sequences

open access: bronze, 2014
The Hankel determinants of certain automatic sequences $f$ are evaluated, based on a calculation modulo a prime number. In most cases, the Hankel determinants of automatic sequences do not have any closed-form expressions; the traditional methods, such ...
Han, Guo-Niu
core   +2 more sources

Third-order Hankel determinant sharp estimates for the inverse of complex valued holomorphic functions [PDF]

open access: yesHeliyon
Determining coefficient estimates of inverse complex valued function is often more challenging than determining the function itself, leading to a lack of articles on inverse functions by examining sharp estimates of the third-order Hankel determinant ...
Muhammad Abbas   +3 more
doaj   +2 more sources

Coefficient Bounds for Some Families of Starlike and Convex Functions of Reciprocal Order [PDF]

open access: yesThe Scientific World Journal, 2014
The aim of the present paper is to investigate coefficient estimates, Fekete-Szegő inequality, and upper bound of third Hankel determinant for some families of starlike and convex functions of reciprocal order.
Muhammad Arif   +3 more
doaj   +2 more sources

Hankel determinant of order three for familiar subsets of analytic functions related with sine function

open access: goldOpen Mathematics, 2019
In this paper we define and consider some familiar subsets of analytic functions associated with sine functions in the region of unit disk on the complex plane. For these classes our aim is to find the Hankel determinant of order three.
Arif Muhammad   +4 more
doaj   +2 more sources

Sharp bounds of the third Hankel determinant for classes of univalent functions with bounded turning [PDF]

open access: yesMathematica Bohemica, 2022
We improve the bounds of the third order Hankel determinant for two classes of univalent functions with bounded turning.
Milutin Obradović   +2 more
doaj   +1 more source

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