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 525381

Homotopy theory, homological algebra, algebraic treatments of manifolds.

1 vote
0 answers
182 views

An open ended question: The dual of a covering map? Is this a real thing?

Reposted from this Reddit post as I didn't get good answers there: So I've been reading about the Galois theory of covering maps and been staring at this equation for way too long: $$\left| \pi_1(X,x_ …
Tetrahedron's user avatar