Some subclasses of p-valent -uniformly type q-starlike and q-convex functions defined by using a certain generalized q-Bernardi integral operator

HM Srivastava, SH Hadi, M Darus - Revista de la Real Academia de …, 2023 - Springer
In this article, we introduce and investigate a generalized q-Bernardi integral operator (or (p,
q)-Bernardi integral operator) for analytic and p-valent (or multivalent) functions. By using …

Some sharp bounds of the third-order Hankel determinant for the inverses of the Ozaki type close-to-convex functions

HM Srivastava, B Rath, KS Kumar… - Bulletin des Sciences …, 2024 - Elsevier
The main object of this article is to present the sharp bounds of the third-order Hankel
determinant for functions in a subclass of normalized analytic functions in the open unit disk …

Coefficient bounds and second Hankel determinant for a subclass of symmetric bi-starlike functions involving Euler polynomials

HM Srivastava, TG Shaba, M Ibrahim, F Tchier… - Bulletin des Sciences …, 2024 - Elsevier
Various operators of fractional calculus, as well as their quantum (or q-) extensions have
been used widely and successfully in the study of the Taylor-Maclaurin coefficient estimation …

[PDF][PDF] Hankel determinant and related problems for q-analogue of convex functions

M Khan, N Khan, Q Xin, F Tchier, SN Malik, QZ Ahmad - Filomat, 2024 - pmf.ni.ac.rs
In this article, by using the idea of q-analogue of the hyperbolic tangent functions we define
a new class of q-convex functions. This study's main contribution is the development of …

Fourth order Hankel determinants for certain subclasses of modified sigmoid-activated analytic functions involving the trigonometric sine function

HM Srivastava, N Khan, MA Bah, A Alahmade… - Journal of Inequalities …, 2024 - Springer
The aim of this paper is to introduce two new subclasses R sin m (ℑ) and R sin (ℑ) of
analytic functions by making use of subordination involving the sine function and the …

Generalized Bounded Turning Functions Connected with Gregory Coefficients

H Tang, Z Mujahid, N Khan, F Tchier, M Ghaffar Khan - Axioms, 2024 - mdpi.com
In this research article, we introduce new family RG of holomorphic functions, which is
related to the generalized bounded turning and generating functions of Gregory coefficients …

[PDF][PDF] Sharp bounds on Hankel determinants of bounded turning functions involving the hyperbolic tangent function

ZG Wang, HM Srivastava, M Arif, ZH Liu… - Applicable Analysis and …, 2024 - doiserbia.nb.rs
Applicable Analysis and Discrete Mathematics SHARP BOUNDS ON HANKEL
DETERMINANTS OF BOUNDED TURNING FUNCTIONS INVOLVING THE HYPE Page 1 …

The sharp bound of the third Hankel determinant of the kth-root transformation for bounded turning functions

HM Srivastava, B Rath, SK KARRI - Acta et Commentationes …, 2023 - ojs.utlib.ee
The objective of this paper is to estimate the sharp bound of the third Hankel determinant for
the kth-root transformation to the class of functions whose derivative has a positive real part …

On k-uniformly starlike convex functions associated with (j, m)-ply symmetric points

E Amini, S Al-Omari - Afrika Matematika, 2025 - Springer
In this paper, we aim to discuss several results associated with conical domains and some
general properties. By utilizing some conical sections, we introduce a new class of analytic …

Sharp coefficients bounds for Starlike functions associated with Gregory coefficients

S Kazımoğlu, E Deniz, HM Srivastava - Complex Analysis and Operator …, 2024 - Springer
In this paper we introduced the class SG∗ of analytic functions which is related with starlike
functions and generating function of Gregory coefficients. By using bounds on some …