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ISSN(Online) 2234-3016
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Bull. Korean Math. Soc. 2005; 42(3): 579-590
Printed September 1, 2005
Copyright © The Korean Mathematical Society.
Some criteria for starlikeness and strongly starlikeness
Neng Xu and Dinggong Yang
Changshu Institute of Technology, Suzhou University
In this paper we derive certain sufficient conditions for starlikeness and strongly starlikeness of analytic functions in the unit disk. Our results generalize and refine the related results due to Li and Owa[1, 2] and Ramesha et al.[5]. Some other new results are also given.
Keywords: analytic function, starlikeness, strongly starlikeness, subordination
MSC numbers: 30C45
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