Sharp Bounds on Hankel Determinant of <i>q</i>-Starlike and <i>q</i>-Convex Functions Subordinate to Secant Hyperbolic Functions

In the present paper, using the <i>q</i>-difference operator, we introduce two classes of <i>q</i>-starlike functions and <i>q</i>-convex functions subordinate to secant hyperbolic functions. As functions in these classes have unique characteristic of missing coef...

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Bibliographic Details
Main Authors: Lifen Zhang, Zhigang Wang, Lei Shi
Format: Article
Language:English
Published: MDPI AG 2025-05-01
Series:Fractal and Fractional
Subjects:
Online Access:https://www.mdpi.com/2504-3110/9/6/346
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