We determine all homogenous linear inequalities satisfied by the numbers of occurrences of the two largest distances among n points in the plane.
On the distribution of distances in finite sets in the plane
β Scribed by K Vesztergombi
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 894 KB
- Volume
- 57
- Category
- Article
- ISSN
- 0012-365X
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β¦ Synopsis
Let n k denote the number of times the kth largest distance occurs among a set S of n points. We show that if S is the set of vertices of a convex polygone in the euclidean plane, then n1+2n2~3n and n2<~n +n 1. Together with the well-known inequality n~<~n and the trivial inequalities n~>~O and n2>~O, all linear inequalities which are valid for n, n 1 and n2 are consequences of these. Similar results are obtained for the hyperbolic plane.
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ON THE mcuitsrvm-OF FINITE SISTS by ROSALD ITARRW in Newcastle upon Tync (England) $j 1 lritrodiiclion In this paprr n n nsgcct, is discussed of tlic relationship between rccursivity aiid intuitive dccitlalilit~~ hi the case of fiiiitc sets, which, altliougli rcfcrred to elsewhere in the literatuw (