Upper Bound of Second Hankel determinant for generalized Sakaguchi type spiral-like functions

Résumé

In this paper, the authors introduce a generalized Sakaguchi type spiral-like

function class S(\lambda, \beta, s, t)  and obtain  sharp upper bound to the

second Hankel determinant |H_{2}(1)| for the function f in the above class.

Relevances of the main result are also briefly indicated.