摘要: Let Ap(n)(p , n ∈ N ={1,2,…}) denote the class of functions of the form ... analytic in the unit disc E ={z :|z |< 1}.By using the method of differential subordinations we give some sufficient conditions for a function f(z)∈ Ap(n)to be a certain subclass Rp(n,k)of p-valently close-to-convexity functions .
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