uSIGMOID FUNCTION IN THE SPACE OF UNIVALENT lambda-PSEUDO STARLIKE FUNCTIONS
uSIGMOID FUNCTION IN THE SPACE OF UNIVALENT lambda-PSEUDO STARLIKE FUNCTIONS
In the present investigation, we obtain initial coefficients of λpseudo starlike functions related to sigmoid functions and the Fekete-Szegö coefficient functional |a 3 -µa 2 2 | for certain normalized analytic functions defined on the open unit disk.As an application of the main result,we pointed out the initial coefficients and …