Sharp Bounds for Higher-Order Schippers Functionals Associated with Lune and Bean Domains

Firdoshi Parveen, Pradip Das

We obtain sharp bounds for the third- and fourth-order Schippers functionals, $|{\sigma }_3(f)(0)|$ and $|{\sigma }_4(f)(0)|$, for subclasses of univalent functions associated with non-classical g…