Search Results
| 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 cohomology-operations
Search options answers only
not deleted
user 3969
3
votes
What do cohomology operations have to do with the non-existence of commutative cochains over...
A nice example is the following. Let $G=\mathbb{Z}/p$ and look at the DGA $C^*$ of singular cochains on $BG$ with coefficients in $\mathbb{F}_p$. Let us assume $p>2$.
Its cohomology is an exterior al …
- 11.1k