normal graph paper
常見(jiàn)例句
- In this paper, we study the condition which makes the fundamental group of graph have every positive integer as the index of some normal subgroup.
本文主要研究圖的基本群的正槼子群的指數(shù)何時(shí)成爲(wèi)任意正整數(shù)的條件。 返回 normal graph paper