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Remarkable valuation of the dichromatic polynomial of planar multigraphs. (English) Zbl 0321.05108

05C15 Coloring of graphs and hypergraphs
05C10 Planar graphs; geometric and topological aspects of graph theory
Full Text: DOI
[1] P. Martin, in preparation, 1975.
[2] Rosenstiehl, P.: Bicycles et diagonales des graphes planaires. Rencontre franco-belge de thĂ©orie des graphes (1974) · Zbl 0328.05104
[3] P. Rosenstiehl, in preparation, 1975.
[4] Shank, H.: The theory of left-right paths. Lecture notes in mathematics no. 452, 42-54 (1975) · Zbl 0307.05120
[5] Tutte, W. T.: A contribution to the theory of chromatic polynomials. Canad. J. Math. 6, 80-91 (1953) · Zbl 0055.17101
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