Displaying similar documents to “A note on some results of Schwick.”

A normality criterion for meromorphic functions having multiple zeros

Shanpeng Zeng, Indrajit Lahiri (2014)

Annales Polonici Mathematici

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We prove a normality criterion for a family of meromorphic functions having multiple zeros which involves sharing of a non-zero value by the product of functions and their linear differential polynomials.

On a question of Hong Xun Yi

Indrajit Lahiri (2002)

Archivum Mathematicum

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In the paper we prove a uniqueness theorem for meromorphic functions which provides an answer to a question of H. X. Yi.

Uniqueness of meromorphic functions sharing a meromorphic function of a smaller order with their derivatives

Xiao-Min Li, Hong-Xun Yi (2010)

Annales Polonici Mathematici

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We prove some uniqueness theorems for meromorphic functions and their derivatives that share a meromorphic function whose order is less than those of the above meromorphic functions. The results in this paper improve those given by G. G. Gundersen & L. Z. Yang, J. P. Wang, J. M. Chang & Y. Z. Zhu, and others. Some examples are provided to show that our results are the best possible.