Results 121 to 130 of about 653 (205)

Bounds for the Second Hankel Determinant and Its Inverse in Specific Function Classes

Axioms
This paper presents a newly defined subclass of analytic functions and explores several significant properties within the class, which use for their definitions the q-analogues of the derivative and the subordinations. Thus, we tried to connect different
Trailokya Panigrahi, Teodor Bulboacă, Shiba Prasad Dhal   +2 more
doaj   +1 more source

Continued fraction expansions of Herglotz-Nevanlinna functions and generalized indefinite strings of Stieltjes type. [PDF]

Bull Lond Math Soc, 2022
Eckhardt J.
europepmc   +1 more source

On the computation of recurrence coefficients for univariate orthogonal polynomials. [PDF]

J Sci Comput, 2021
Liu Z, Narayan A.
europepmc   +1 more source

Sharp Coefficient Estimates for Analytic Functions Subordinate to the Cusp Domain: Theory and Image Processing Applications

Mathematics
This article proposes a new type of analytic function called Mtan and introduces a new geometric structure that blends exponential and trigonometric properties.
Mohammad El-Ityan, Adel Salim Tayyah, Mohammed Hamzah Alsalihi, Basem Aref Frasin, Alina Alb Lupaş   +4 more
doaj   +1 more source

Fourth Hankel and Toeplitz determinant estimates for certain analytic functions associated with Four Leaf function

Extracta Mathematicae
The objective of this paper is to establish initial coefficient inequalities, Upper bounds to the Hankel and Toeplitz determinants for certain normalized univalent functions defined on the open unit disk D in the complex plane related to the analytic ...
R. Rudrani, R. Bharavi Sharma, S. Sambasiva Rao   +2 more
doaj   +1 more source

Some nice Hankel determinants

, 2011
45 ...
openaire   +2 more sources

Inverse and Logarithmic Coefficient Bounds of Concave Univalent Functions

Axioms
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, Nak Eun Cho, Srikandan Sivasubramanian   +2 more
doaj   +1 more source

A theorem on shifted Hankel determinants

, 2019
We prove a conjecture of Johann Cigler on shifted Hankel determinants.
openaire   +2 more sources

Hankel determinants of Dirichlet series

, 2009
11 pages, 1 ...
openaire   +2 more sources

The Central Hankel Transform [PDF]

, 2015
We define central Hankel matrices, variations on the well-understood Hankel matrices, in order to investigate familiar sequences, e.g. arithmetic, Fibonacci, and Lucas sequences. We find explicit closed formulae for determinant of a central Hankel matrix
Levine, Matthew
core