There are integral heptagons, no three points on a line, no four on a circle

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We give two configurations of seven points in the plane, no three points in a line, no four points on a circle with pairwise integral distances. This answers a famous question of Paul Erdős.
4 pages, 1 figure

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Combinatorics, 52C10 (Primary);52C35,52-04,52A99,51K99 (Secondary)

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http://salesiana.dossiersoluciones.com/handle/123456789/158335

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0804.1303
 http://arxiv.org/abs/0804.1303

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arXiv