Perfect colorings of $Z^2$: Nine colors

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We list all perfect colorings of $Z^2$ by 9 or less colors. Keywords: perfect colorings, equitable partitions
177 pages (large Appendix). !Attention: .ps is 17Mb, .pdf is 1.6Mb, archived source is 40kb

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Combinatorics, 05B30; 05C15

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http://salesiana.dossiersoluciones.com/handle/123456789/214061

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0901.0004
 http://arxiv.org/abs/0901.0004

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arXiv