Skip to main content
Search type Search syntax
Tags [tag]
Exact "words here"
Author user:1234
user:me (yours)
Score score:3 (3+)
score:0 (none)
Answers answers:3 (3+)
answers:0 (none)
isaccepted:yes
hasaccepted:no
inquestion:1234
Views views:250
Code code:"if (foo != bar)"
Sections title:apples
body:"apples oranges"
URL url:"*.example.com"
Saves in:saves
Status closed:yes
duplicate:no
migrated:no
wiki:no
Types is:question
is:answer
Exclude -[tag]
-apples
For more details on advanced search visit our help page
Results tagged with
Search options not deleted user 25511

Topology of groups of automorphisms of surfaces, and high dimensional analogues.

14 votes
3 answers
679 views

Compact manifolds with big mapping class group

I was wondering if compact surfaces were the only compact manifolds with a "big" or "complicated" mapping class group. Are there higher dimensional manifolds (which are not in some way reducible to …
Selim G's user avatar
  • 2,696
2 votes
1 answer
319 views

Veech group and mapping class group

So I have this question which is somewhat directed to people knowing a bit about translation surfaces. I am sure it is only a technical issue. I consider $f : (\Sigma, \omega) \longrightarrow (\Sigma …
Selim G's user avatar
  • 2,696
3 votes
1 answer
1k views

Explicit computation of the action of a Dehn twist on the fundamental group of a surface

Let $S$ be a compact orientable surface of genus $g$. Now let $p\in S$ and $\gamma$ a closed simple curve on $S$ disjoint from $p$. It is not very difficult to compute the action of a Dehn twist along …
Selim G's user avatar
  • 2,696