منابع مشابه
A New Criterion for Multivalent Starlike Functions
The main purpose of the present paper is to derive a new criterion for mul-tivalent starlike functions by applying Jack's lemma.
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Let * (p,α) be the class of functions f (z) which are analytic and p-valently starlike of order α in the open unit disk E. The object of the present paper is to derive an interesting condition for f (z) to be in the class * (p,α). This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution , and reproduction in any ...
متن کاملNeighborhoods of Multivalent Functions
In this note, we introduce the new operator Dp(λ, q, η). Using this operator, we define the new subclasses of analytic and multivalent functions and for functions belonging to these classes, certain (n, δ)neighborhood properties are obtained. Mathematics Subject Classification: 30C45
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By using the method of differential subordination, we obtain some sufficient conditions for strongly p-valent starlikeness.
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ژورنال
عنوان ژورنال: Proceedings of the Japan Academy, Series A, Mathematical Sciences
سال: 1992
ISSN: 0386-2194
DOI: 10.3792/pjaa.68.327