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 at.algebraic-topology
Search options not deleted
user 101132
Homotopy theory, homological algebra, algebraic treatments of manifolds.
2
votes
0
answers
85
views
$n$-point map $S$ from $k$-manifold $X$ to $\mathbb{R}^k$
It is known that for every continuous map $M:S^1\to \mathbb{R}$ there are infinitely many double points. Also by the Borsuk-Ulam theorem, this is true for each continuous map $N:S^n\to \mathbb{R}^n$, …
- 289
4
votes
0
answers
428
views
On some characteristics of continuous maps $S^n \to \mathbb{R}^n$
I've asked this question about two month ago in math exchange but there were no answer to it.
Any information or paper relating to this question is appreciated.
By the Borsuk-Ulam theorem we know tha …
- 289
5
votes
3
answers
471
views
Is there a dense subset on closed Jordan curve $C$ which its points make intersections under...
Is it true that for any given closed Jordan curve of $C \subset \mathbb{R}^2$ there is a dense subset $A$ such that for every point $p\in A$ we have the following property:
If we rotate $C$ around $p …
- 289
1
vote
Accepted
Is there a dense subset on closed Jordan curve $C$ which its points make intersections under...
Thanks for the efforts have done on this problem specially by @erz ,but It seems that Mark J.Nielsen have solved this problem here (that I have found it recently), while he was proving this theorem a …