Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4664032 | Acta Mathematica Scientia | 2012 | 14 Pages |
Abstract
We prove an oscillation theorem of two meromorphic functions whose derivatives share four values IM. From this we obtain some uniqueness theorems, which improve the corresponding results given by Yang [16] and Qiu [10], and supplement results given by Nevanlinna [9] and Gundersen [3, 4]. Some examples are provided to show that the results in this paper are best possible.
Related Topics
Physical Sciences and Engineering
Mathematics
Mathematics (General)