Analysis estimates Hankel determinants in starlike and convex function subclasses, suggesting improved understanding of function properties.
In the present study, we consider two subclasses of starlike and convex functions, denoted by S*B and CB respectively, associated with a bean-shaped domain. Further, we estimate certain sharp initial coefficients, as well as second, third and fourth-order Hankel determinants for functions belonging to the class S*B. Additionally, we compute sharp second and third-order Hankel determinants for functions belonging to the class CB.
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Kumar et al. (2025) studied this question.
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