判别数项级数发散的一种方法——加括号法

An Approach to Distinguish Diffusion of the Number Item Congression

本文首先对调和级数用反证法证明其发散,随后,将这种方法加以推广建立了判别正项发散的一种方法——加括号法,而这种方法也适用于一般项级数。

The paper first proves the diffusion of the harmonious progression by using reduction to absurdity, and then spreads this method to establish an approach to distinguish the diffusion of the Positive Item Congres-sion.