摘要：本文主要尝试利用任意项级数的各类审敛法（比值审敛法﹑根值审敛法﹑阿贝尔审敛法和狄里克雷审敛法）研究函数项级数的收敛域。

关键词：函数项级数；收敛域；比值审敛法；根值审敛法

Abstract :  In this paper, try to use any series types of Criteria for ( the ratio method in convergence criterion, the root value method in convergence criterion, Abel trial of Convergence and Dirichlet convergence criterion method) Function Series Convergence domain.

Key words : series of function; convergence region; the ratio text; the root text