• 대한수학회보
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• 제54권3호
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• pp.825-838
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• 2017

In this paper we study the uniqueness question of meromorphic functions whose certain differential polynomials share a small function.

• 대한수학회논문집
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• 제35권4호
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• pp.1133-1142
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• 2020

In this paper, we study normality concerning two families of meromorphic functions. In particular, we investigate the sharing conditions under which normality of one family implies the normality of other. Results obtained in this paper extend some earlier works of several authors.

• Kyungpook Mathematical Journal
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• 제50권3호
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• pp.357-370
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• 2010

We prove some uniqueness theorems of meromorphic functions sharing three values which improves some results of Banerjee.

• Kyungpook Mathematical Journal
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• 제50권3호
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• pp.345-355
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• 2010

In this paper, we investigate uniqueness problems of meromorphic functions sharing a small function with their differential polynomials, and give some results which are related to a conjecture of R. Br$\"{u}$ck, and also improve several previous results.

• Kyungpook Mathematical Journal
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• 제54권3호
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• pp.365-374
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• 2014

In this paper, we introduce a new subclass of meromorphic functions defined in the punctured unit disc. We derive inclusion relationships, radius problem and some other interesting properties of this class are investigated.

• 한국수학교육학회지시리즈B:순수및응용수학
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• 제10권1호
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• pp.1-11
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• 2003

In this paper we derive some sufficient conditions for starlikeness and close-to-convexity of order ${\alpha}$ of meromorphic functions in the punctured unit disk.

• Kyungpook Mathematical Journal
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• 제55권2호
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• pp.335-344
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• 2015

In the paper we discuss the value distribution of the product of the derivative of a transcendental meromorphic function and a power of the function.

• Kyungpook Mathematical Journal
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• 제48권4호
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• pp.623-636
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• 2008

In this paper, we prove some results on uniqueness of meromorphic functions with three weighted sharing values. The results in this paper improve those given by H. X. Yi, I. Lahiri, T. C. Alzahary and H. X. Yi and other authors.

• East Asian mathematical journal
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• 제28권3호
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• pp.321-332
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• 2012

The purpose of the present paper is to investigate some subordination and superordination preserving properties of certain integral operators de ned on the space of meromorphic functions in the puncture open unit disk. The sandwich-type theorems for these integral operators are also presented.

• Kyungpook Mathematical Journal
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• 제53권2호
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• pp.191-205
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• 2013

We study the uniqueness of meromorphic functions concerning nonlinear differential polynomials sharing a nonzero polynomial IM. Though the main concern of the paper is to improve a recent result of the present author [12], as a consequence of the main result we also generalize two recent results of X. M. Li and L. Gao [11].