Normal Families of Meromorphic Functions Concerning Higher Derivative and Shared Values

We study the normal families related to a Hayman conjecture of higher derivative and concerning shared values and get two normal criteria. Our results improve the related theorems which were obtained independently, respectively by Fang and Yuan (2001), Yuan et al. ((2011) and (2012)), Wang et al. (2...

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Main Authors: Wei Chen, Wenjun Yuan, Honggen Tian
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:Abstract and Applied Analysis
Online Access:http://dx.doi.org/10.1155/2013/368321
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author Wei Chen
Wenjun Yuan
Honggen Tian
author_facet Wei Chen
Wenjun Yuan
Honggen Tian
author_sort Wei Chen
collection DOAJ
description We study the normal families related to a Hayman conjecture of higher derivative and concerning shared values and get two normal criteria. Our results improve the related theorems which were obtained independently, respectively by Fang and Yuan (2001), Yuan et al. ((2011) and (2012)), Wang et al. (2011), and Qiu et al. (2012). Meanwhile, some examples are given to show the sharpness of our results.
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publishDate 2013-01-01
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spelling doaj-art-9b1eff2436b34dbc991eead33972ac812025-08-20T02:20:25ZengWileyAbstract and Applied Analysis1085-33751687-04092013-01-01201310.1155/2013/368321368321Normal Families of Meromorphic Functions Concerning Higher Derivative and Shared ValuesWei Chen0Wenjun Yuan1Honggen Tian2School of Mathematics Sciences, Xinjiang Normal University, Urumqi, Xinjiang 830054, ChinaSchool of Mathematics and Information Sciences, Guangzhou University, Guangzhou, Guangdong 510006, ChinaSchool of Mathematics Sciences, Xinjiang Normal University, Urumqi, Xinjiang 830054, ChinaWe study the normal families related to a Hayman conjecture of higher derivative and concerning shared values and get two normal criteria. Our results improve the related theorems which were obtained independently, respectively by Fang and Yuan (2001), Yuan et al. ((2011) and (2012)), Wang et al. (2011), and Qiu et al. (2012). Meanwhile, some examples are given to show the sharpness of our results.http://dx.doi.org/10.1155/2013/368321
spellingShingle Wei Chen
Wenjun Yuan
Honggen Tian
Normal Families of Meromorphic Functions Concerning Higher Derivative and Shared Values
Abstract and Applied Analysis
title Normal Families of Meromorphic Functions Concerning Higher Derivative and Shared Values
title_full Normal Families of Meromorphic Functions Concerning Higher Derivative and Shared Values
title_fullStr Normal Families of Meromorphic Functions Concerning Higher Derivative and Shared Values
title_full_unstemmed Normal Families of Meromorphic Functions Concerning Higher Derivative and Shared Values
title_short Normal Families of Meromorphic Functions Concerning Higher Derivative and Shared Values
title_sort normal families of meromorphic functions concerning higher derivative and shared values
url http://dx.doi.org/10.1155/2013/368321
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AT wenjunyuan normalfamiliesofmeromorphicfunctionsconcerninghigherderivativeandsharedvalues
AT honggentian normalfamiliesofmeromorphicfunctionsconcerninghigherderivativeandsharedvalues