Upper bound of the third Hankel determinant for a class of analytic functions related with lemniscate of Bernoulli

Abstract

In this paper, the upper bound of the Hankel determinant H3(1) for a subclass of analytic functions associated with right half of the lemniscate of Bernoulli (x2 + y2)2 - 2(x 2 - y2/sup> ) = 0 is investigated. © 2013 Raza and Malik; licensee Springer.