Uniqueness and periodicity of meromorphic functions concerning the difference operator

✍ Scribed by Xiao-Guang Qi; Lian-Zhong Yang; Kai Liu

• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 292 KB
• Volume: 60
• Category: Article
• ISSN: 0898-1221
• DOI: 10.1016/j.camwa.2010.07.004

✦ Synopsis

a b s t r a c t

In this paper, we investigate the uniqueness problems of difference polynomials of meromorphic functions that share a value or a fixed point. We also obtain several results concerning the shifts of meromorphic functions and the sufficient conditions for periodicity which improve some recent results in Heittokangas et al. (2009) [10] and Liu (2009) [11].