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 18060
16 votes
Accepted

Classification of Tori of GL2, up to conjugation

In general, a group that is isomorphic to a $d$-dimensional torus over the algebraic closure of the ground field can be identified by the action of the Galois group on its character group / group of o …
Will Sawin's user avatar
  • 148k
4 votes

Projective line as a quotient by a torus

$\mathbb P^1$ viewed as a toric variety has $3$ orbits. If we take a quotient of a $n+1$-dimensional toric variety by an $n$-dimensional subtorus of its torus, the number of orbits does not change, so …
Will Sawin's user avatar
  • 148k