Geodesic
Three-and-more set theorems
Commentationes Mathematicae Universitatis Carolinae, Tome 41 (2000) no. 4, pp. 793-801.

Voir la notice de l'article provenant de la source Czech Digital Mathematics Library

In this paper we generalize classical 3-set theorem related to stable partitions of arbitrary mappings due to Erd\H{o}s-de Bruijn, Katětov and Kasteleyn. We consider a structural generalization of this result to partitions preserving sets of inequalities and characterize all finite sets of such inequalities which can be preserved by a ``small'' coloring. These results are also related to graph homomorphisms and (oriented) colorings.
Classification : 05C05, 05C15, 05C99, 05D05
Keywords: relation; compactness 
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     title = {Three-and-more set theorems},
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Hell, Pavol; Nešetřil, J.; Raspaud, A.; Sopena, E. Three-and-more set theorems. Commentationes Mathematicae Universitatis Carolinae, Tome 41 (2000) no. 4, pp. 793-801. http://geodesic.mathdoc.fr/item/CMUC_2000__41_4_a11/