Abstract :
Making use of certain differential operators defined by Hadamard product, the author studies, among other things, the subclasses Jn,p(α)(0 ≤ α < p, p ∈ N = {1, 2, •••}) of meromorphically multivalent convex functions in the open unit disk U, where n is any integer greater than −p. The author shows in particular that Jn+1,p(α) ⊂ Jn,p(α) and considers the integrals of functions in Jn,p(α).
