THIRD HANKEL AND TOEPLITZ DETERMINANTS FOR CERTAIN SUBCLASSES OF ANALYTIC FUNCTIONS ASSOCIATED WITH NEPHROID DOMAIN

摘要

The aim of this paper is to study an upper bound for third Hankel and Toeplitz determinants for certain analytic functions associated with Nephroid domain in the open unit disk. Our results concerning third Hankel determinants improves the existing bounds in the literature. The extremal functions for sharpness of certain results have been reported.