Riassunto
In questo lavoro si introduce un particolare tipo di immersioni cellulari, dette regolari, per grafi colorati sugli spigoli. Facendo uso di tecniche sia geometriche che combinatorie si espongono alcuni teoremi generali di immersione per tali grafi, strettamente collegati si poliedri da essi rappresentati.
Abstract
A particular kind of 2-cell imbeddings, called regular, for edge-coloured graphs is introduced. By using both geometric and combinatorial techniques, some general imbedding theorems for such graphs, strictly related to the polyhedra they represent, are presented.
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Work performed under the auspicies of the G.N.S.A.G.A. of the C.N.R. (National Research Council of Italy).
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Gagliardi, C. Regular imbeddings of edge-coloured graphs. Geom Dedicata 11, 397–414 (1981). https://doi.org/10.1007/BF00181201
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DOI: https://doi.org/10.1007/BF00181201