Ciro Santilli $$ Sponsor Ciro $$ 中国独裁统治 China Dictatorship 新疆改造中心、六四事件、法轮功、郝海东、709大抓捕、2015巴拿马文件 邓家贵、低端人口、西藏骚乱
🔗
🔗
Besides the understandable Wikipedia definition, Video 171. ""Simple Groups - Abstract Algebra" by Socratica (2018)" gives an understandable one:
Given a finite group and a simple group , find all groups such that is a normal subgroup of and .
🔗
We don't really know how to make up larger groups from smaller simple groups, which would complete the classification of finite groups:
🔗
In particular, this is hard because you can't just take the direct product of groups to retrieve the original group: Section "Relationship between the quotient group and direct products".
🔗
🔗

Ancestors

🔗