Bounds of Hankel Determinant for a Class of Univalent Functions

摘要

The authors study the coefficient condition for the classℌαdefined as the family of analytic functionsf,f(0)=0andf′(0)=1, which satisfyℜ[(1-α)f′(z)+α(1+(zf″(z))/(f′(z)))]>α,  z∈E, whereαis a real number.