The main aim of this paper is to discuss the third Hankel determinants for three classes: S^*
S∗ of starlike functions, KK of convex functions and RR of functions whose derivative has a …

The aim of this paper is to determine sharp bound for the second Hankel determinant of
logarithmic coefficients H 2, 1 (F f/2) of strongly Ozaki close-to-convex functions in the open …

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 …

In recent years, the study of Hankel determinants for various subclasses of normalised
univalent functions f∈ S given by f (z)= z+∑ n= 2∞ anzn for D={z∈ C:| z|< 1} has produced …

Fourth Hankel Determinant for the Set of Star‐Like Functions Page 1 Research Article
Fourth Hankel Determinant for the Set of Star-Like Functions Muhammad Arif ,1 Lubna Rani,1 …

Let S denote the class of analytic univalent functions in 𝔻:= z ϵ ℂ:| z|< 1 normalized so that
fz= z+∑ n= 2∞ anzn. f (z)= z+ ∑ _ n= 2^ ∞ a _n z^ n. Let C and S∗ be the subclasses of S …

We discuss the Hankel determinants H 2 (n)= anan+ 2-an+ 1 2 for typically real functions,
that is, analytic functions which satisfy the condition Im⁡ z Im⁡ f (z)≥ 0 in the unit disk Δ …

Background As a natural fermentation product secreted by Clostridium species, bio-based 1-
butanol has attracted great attention for its potential as alternative fuel and chemical …

This article deals with the upper bound of fourth‐order Hankel and Toeplitz determinants for
the convex functions which are defined by using the sine function. The main tools in this …

FUNCTIONS ASSOCIATED WITH HANKEL DETERMINANT Page 1 Indian J. Pure Appl.
Math, 46(1): 91-106, February 2015 © Indian National Science Academy DOI: 10.1007/sl3226-015-0111-1 …