30 Functions of a complex variable -- 30D Entire and meromorphic functions, and related topics 30D30 Meromorphic functions, general theory 30D35 Distribution of values, Nevanlinna theory
Summary: ``In this paper, we study the normality of a family of meromorphic functions. By using the method of apagoge, a general criterion for normality of families of meromorphic functions with differential polynomial concerning shared values is obtained, which improves the result given by Fang Mingliang and L. Zalcman in 2002.''