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A protrusive ordering of 5 points not witnessed by any finite multiset
- Publication Year :
- 2023
-
Abstract
- Given a finite set of points $C \subseteq \mathbb{R}^d$, we say that an ordering of $C$ is protrusive if every point lies outside the convex hull of the points preceding it. We give an example of a set $C$ of $5$ points in the Euclidean plane possessing a protrusive ordering that cannot be obtained by ranking the points of $C$ according to the sum of their distances to a finite multiset of points. This answers a question of Alon, Defant, Kravitz and Zhu.
- Subjects :
- Mathematics - Combinatorics
Mathematics - Metric Geometry
Subjects
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.2309.12809
- Document Type :
- Working Paper