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Euclidean minimum spanning trees in three and more dimensions

Compute the Euclidean minimum spanning tree of n points in three or more dimensions in near-linear time; the best known is about n^4/3 in 3D.

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1{
2 "domain": "computer-science",
3 "topics": [
4 "computational-geometry",
5 "algorithms-complexity"
6 ],
7 "type": "algorithm",
8 "also": [
9 "proof"
10 ],
11 "cover": {
12 "motif": "points",
13 "n": 9
14 },
15 "source": {
16 "key": "topp",
17 "name": "The Open Problems Project",
18 "url": "https://topp.openproblem.net/p5",
19 "id": "5",
20 "curator": "Erik D. Demaine, Joseph S. B. Mitchell and Joseph O'Rourke",
21 "status": "open",
22 "as_of": "2026-10-20",
23 "catalog": "0521c19bbd38"
24 },
25 "review": true,
26 "approval": "first-time"
27}