Browsing by Author "Breaz, Daniel"

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    Hankel Determinants of Normalized Analytic Functions Associated with Hyperbolic Secant Function
    (Multidisciplinary Digital Publishing Institute (MDPI), 2024) Kumar, Sushil; Breaz, Daniel; Cotirla, Luminita-Ioana; ÇETİNKAYA, ASENA
    In this paper, we consider a subclass of normalized analytic functions associated with the hyperbolic secant function. We compute the sharp bounds on third- and fourth-order Hermitian–Toeplitz determinants for functions in this class. Moreover, we determine the bounds on second- and third-order Hankel determinants, as well as on the generalized Zalcman conjecture. We examine a Briot–Bouquet-type differential subordination involving the Bernardi integral operator. Finally, we obtain a univalent solution to the Briot–Bouquet differential equation, and discuss the majorization property for such function classes. © 2024 by the authors.