The Sharp Upper Bounds of the Hankel Determinant on Logarithmic Coefficients for Certain Analytic Functions Connected with Eight-Shaped Domains

The present study’s intention is to produce exact estimations of some problems involving logarithmic coefficients for functions belonging the considered subcollection B mathvariant="script">T mathvariant="normal">sin bounded turning class. Furthermore, class id="M2"> , we look into accurate bounds Zalcman inequality, Fekete-Szegö inequality along with id="M3"> mathvariant="script">D 2 , 1 G g / and id="M4"> . Importantly, all these are shown be sharp.