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Let T (n, p) denote the class of functions of the form f (z) = z p − ∞ k=n a k+ p z k+ p (a k+ p ≥ 0; p, n ∈ N) which are analytic and p-valent in the open unit disc U = {z : |z| < 1}. For functions f j (z) (j = 1, 2) belonging to T (n, p), generalizations of the modified-Hadamard product of f 1 (z) and f 2 (z) represented by (f 1 ∆ f 2) (r, s; z) (r, s ∈(More)
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