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 convex-polytopes
Search options not deleted
user 32507
Convex polytopes are the convex hulls of a finite set of points in Euclidean spaces. They have rich combinatorial, arithmetic, and metrical theory, and are related to toric varieties and to linear programming
2
votes
Accepted
A converse question about the polyhedrality under linear mapping
I think we can argue as in https://mathoverflow.net/a/423284/32507 to answer the question in the affirmative.
Let $\mathcal R_K(x)$ be the radial cone of $K$ at $x$ (as defined in the other answer). F …
- 1,724
0
votes
On faces of polytopes
The set $K_A$ is essentially a polar of $A$. Indeed, we have
$$
A = \{ x \in \mathbb R^n \mid l(x) \ge t \; \forall (l,t) \in K_A\} =: B.$$
The inclusion "$\subset$" is clear and in order to check "$\ …
- 1,724
4
votes
1
answer
158
views
Lifting of a spherical graph
Let us be given a topological graph $G$
on the unit sphere in $\mathbb{R}^3$
whose edges are minor arcs of great circles.
We suppose that the graph is $3$-vertex-connected
and that a pair of edges may …
- 1,724