Abstract
Let H=(X, ξ) be a hypergraph with vertex-set X={x1, x2, ..., xn}. We have a multicoloring of H with λ colors if we can assign to each X ε X one or several of these colors so that in each edge E ε ξ every color occurs exactly once.
Clearly, if there exists a multicoloring of H, one color defines a set of vertices which is both strongly stable and transversal; no general condition for the existence of such a set exists in the literature. The purpose of this paper is to provide existence conditions not only for a strongly stable transversal set, but also for a multicoloring.
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References
C. Berge, Sur certains hypergraphs généralisant les graphes bipartis, Combinatorial Theory and its Applications, (Erdös, Renyi, Sós editors), North Holland, Amsterdam-London, 1970, 119–133.
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© 1978 Springer-Verlag Berlin Heidelberg
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Berge, C. (1978). The multicolorings of graphs and hypergraphs. In: Alavi, Y., Lick, D.R. (eds) Theory and Applications of Graphs. Lecture Notes in Mathematics, vol 642. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0070362
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DOI: https://doi.org/10.1007/BFb0070362
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