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 answers only not deleted user 7460
3 votes

Defining the natural co-ordinate for a holomorphic quadratic differential near a zero of odd...

The following result can be found in the book of Strebel "Quadratic differentials", p. 29. Theorem In the neighborhood of any zero $P_0$ we can introduce a local parameter $\xi$, such that $P_0$ cor …
Francesco Polizzi's user avatar
3 votes
Accepted

Mapping class group of a punctured genus 0 surface

Let $S_g$ be a compact Riemann surface of genus $g$ with $n$ marked points $x_1, \ldots, x_n$, and set $S_{g, \, n}:=S_g - \{x_0, \ldots, x_n\}$. Also, denote by $\pi_{g, \, n}$ the fundamental group …
Francesco Polizzi's user avatar
8 votes
Accepted

Universal covering of a 2-sphere without $n$ points

I think this is part of the classical theory of Fuchsian groups. For instance, in the case $n=3$ the fundamental group of the thrice punctured sphere can be explicitly identified with the congruence …
Francesco Polizzi's user avatar