On Uniqueness of Meromorphic Functions and Their Derivatives in One Angular Domain |
Received:September 20, 2007 Revised:March 10, 2008 |
Key Words:
uniqueness of meromorphic function derivative functions angular domain.
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Fund Project:the National Natural Science Foundation of China (No.10471048); the Natural Science Foundation of Xianning College (No.BK0714) and the Natural Science Foundation of Hubei Educational Committee (No.2009B2809). |
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Abstract: |
In this paper, applying the Nevanlinna theory of meromorphic function in one angular domain, we deal with a problem of uniqueness for meromorphic functions and their derivatives sharing three finite value ignoring multiplicities in an angular domain instead of the whole complex plane. Obtained results improve a recent result of Lin Weichuan and Seiki Mori. |
Citation: |
DOI:10.3770/j.issn:1000-341X.2009.05.015 |
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