For p-valently spirallike and p-valently Robertson functions in the open unit disk U, reciprocal classes S p (α, β), and C p (α, β) are introduced. The object of the present paper is to discuss some interesting properties for functions f(z) belonging to the classes S p (α, β) and C p (α, β).

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For analytic functions f (z) in the open unit disk U, a class U p (λ) of f (z) satisfying some conditions is introduced. The object of the present paper is to discuss the radius properties of f (z) such that 1