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This article is cited in 6 scientific papers (total in 6 papers)
A short proof of the twelve-point theorem
D. Repovša, M. B. Skopenkovb, M. Cencelja a University of Ljubljana
b M. V. Lomonosov Moscow State University
Abstract:
We present a short elementary proof of the following twelve-point theorem. Let $M$ be a convex polygon with vertices at lattice points, containing a single lattice point in its interior. Denote by $m$ (respectively, $m^*$) the number of lattice points in the boundary of $M$ (respectively, in the boundary of the dual polygon). Then $m+m^*=12$.
Received: 29.06.2004
Citation:
D. Repovš, M. B. Skopenkov, M. Cencelj, “A short proof of the twelve-point theorem”, Mat. Zametki, 77:1 (2005), 117–120; Math. Notes, 77:1 (2005), 108–111
Linking options:
https://www.mathnet.ru/eng/mzm2474https://doi.org/10.4213/mzm2474 https://www.mathnet.ru/eng/mzm/v77/i1/p117
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