current community
chat
blog
MathOverflow
MathOverflow Meta
your communities
Sign up
or
log in
to customize your list.
more stack exchange communities
Stack Exchange
sign up
log in
tour
help
Tour
Start here for a quick overview of the site
Help Center
Detailed answers to any questions you might have
Meta
Discuss the workings and policies of this site
MathOverflow
Questions
Tags
Users
Badges
Unanswered
Ask Question
Poove
less info
network profile
102
reputation
6
bio
website
location
age
visits
member for
3 years, 8 months
seen
Dec 11 '11 at 9:01
stats
profile views
322
102
reputation
bio
website
visits
member for
3 years, 8 months
6
badges
location
seen
Dec 11 '11 at 9:01
summary
answers
questions
tags
badges
favorites
bounties
reputation
activity
1
Favorite
added
views
newest
activity
votes
2
4
votes
2
answers
406
views
Suppose $\Gamma_m$ is a principal congruence subgroup of level m contained in a finite index subgroup $\Gamma$ of $SL(n,\mathbb Z)$. Is $\Gamma_m$ characteristic in $\Gamma$?
gr.group-theory
sep 16 '11 at 19:17
Poove
102
MathOverflow works best with JavaScript enabled