The radius of p-valent starlikeness for certain classes of analytic functions
نویسندگان
چکیده
منابع مشابه
Radius of p-valent Strong Starlikeness for Certain Class of Analytic Functions
This paper deals with p-valent strongly starlikeness of the class SP (α,A,B) satisfying the subordination e zf ′(z) f(z) ≺ cos z 1 +Az 1 +Bz + i sin α, f ∈ A, z ∈ ∆, 0 ≤ α < 1, −1 ≤ B < A ≤ 1. We are concerned with computing the radius results for the above mentioned class and the results that we obtained are generalizations of earlier results obtained previously by different authors. MSC: 30C4...
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For analytic functions f (z) = z p +a p+1 z p+1 +··· in the open unit disk U and a polynomial Q(z) of degree n > 0, the function F(z) = f (z)[Q(z)] β/n is introduced. The object of the present paper is to determine the radius of p-valently strongly starlikeness of order γ for F(z).
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ژورنال
عنوان ژورنال: Annales Polonici Mathematici
سال: 1970
ISSN: 0066-2216,1730-6272
DOI: 10.4064/ap-23-1-49-55