具有公共值微分多项式的唯一性

摘要

本文研究了亚纯函数的微分多项式分担两个值的唯一性问题。利用重数的概念，得到了两个定理，其结果推广了前人的有关定理。This paper is devoted to studying the uniqueness problem on meromorphic functions whose dif- ferential polynomials share two values. By using the notion of multiplicity, we obtain two theorems which improve the previous results.