In the present paper, we obtain Fekete-Szegö inequalities and sharp bounds for some subclasses of analytic and p-valent functions in the open unit disk defined by certain fractional derivative operator.

In the present paper, we introduce two new subclasses T_(m.λ.μ,η,δ)^* (p,α,β,σ) and C_(m,λ,μ,η,δ) ( p,α,β,σ) of multivalent starlike functions in the open unit disk defined by using certain fractional calculus operator. ...