关于一类实数列累次极限的交换次序

On Exchange Order of Repeated Limits of Real-Valued Column

本文给出了一类实数列累次极限可交换次序的条件，为讨论有关数列及级数的收敛性提供了方便。

This paper discusses the condition of exchange order of repeated limits of real-valued column,hence probing the convergence property of real-valued column.