## CERTAIN SUBCLASS OF PASCU-TYPE BI-STARLIKE FUNCTIONS IN PARABOLIC DOMAIN

## CERTAIN SUBCLASS OF PASCU-TYPE BI-STARLIKE FUNCTIONS IN PARABOLIC DOMAIN

*K. Vijaya*

[**PDF**]

## Abstract

Estimates on the coecients ja2j and ja3j are obtained for normalized analytic function f in the open disk with f and its inverse g = f1 satisfy the condition that zf0(z) + z2f00(z) (1 )f(z) + zf0(z) and zg0(z) + z2g00(z) (1 )g(z) + zg0(z) (0 1) are both subordinate to an analytic function in parabolic region. Furthermore, we estimate the Fekete-Szego functional for f 2 P;P (; ').

## Keywords

Analytic functions, univalent functions, bi-univalent functions, bi-starlike functions, bi-convex functions, and subordination.