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Revista de Matemática Teoría y Aplicaciones

Print version ISSN 1409-2433

Rev. Mat vol.23 n.1 San José Jan./Jun. 2016

 

Artículos

On a conjecture of R. Brück concerning meromorphic function sharing small functions

Sobre una conjetura de R.Brück concerniente a la función meromórfica que comparte pequeñas funciones

Hong-Yan Xu1 

Cai-Feng Yi2 

Hua Wang3 

1Department of Informatics and Engineering, Jingdezhen Ceramic Institute, Jingdezhen,Jiangxi, 333403, China. E-Mail: xhyhhh@126.com

2Institute of Mathematics and informatics, Jiangxi Normal University, Nanchang, Jiangxi,330022, China. E-Mail: yicaifeng55@163.com

3Department of Informatics and Engineering, Jingdezhen Ceramic Institute, Jingdezhen, Jiangxi, 333403, China. E-Mail: hhhlucy2012@126.com

Abstract

In this paper, we investigate the uniqueness problem on a conjecture of R. Brück concerning meromorphic function sharing the set of small functions with its derivative, and obtain some results which improve the theorems given by Zhang and Yang.

Keywords: meromorphic function; derivative; small function

Resumen

En este artículo, nvestigamos el problema de unicidad sobre una conjetura de R. Brück que concierne una función meromórfica que comparte un conjunto de pequeñas funciones con su derivada, y obtenemos algunos resultados que mejoran los teoremas dados por Zhang y Yang.

Palabras clave: función meromórfica; derivada; función pequeña

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Received: April 27, 2015; Revised: September 02, 2015; Accepted: October 19, 2015

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