A note on entire functions sharing a finite set with their difference operators

Jianming Qi, Yanfeng Wang, Yongyi Gu
2019 Advances in Difference Equations  
In this note, we will show that an entire function is equal to its difference operator if it has a growth property and shares a set, where the set consists of two entire functions of smaller orders. This result generalizes a result of Li (Comput. Methods Funct. Theory 12:307-328, 2012 and partially answers Liu's (J. Math. Anal. Appl. 359:384-393, 2009) question. MSC: Primary 30D35; secondary 39A10; 39B32
doi:10.1186/s13662-019-1992-9 fatcat:rjt324tukrbarofb3twns6qqhi