Geodesic
Solution of Heawood's empire problem in the plane.
Journal für die reine und angewandte Mathematik, Tome 347 (1984), pp. 146-153.

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

Mots-clés : empire maps, sphere 
@article{JRAM_1984__347_152600,
     author = {Gerhard Ringel and Brad Jackson},
     title = {Solution of {Heawood's} empire problem in the plane.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {146--153},
     publisher = {mathdoc},
     volume = {347},
     year = {1984},
     zbl = {0519.05028},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1984__347_152600/}
}
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Gerhard Ringel; Brad Jackson. Solution of Heawood's empire problem in the plane.. Journal für die reine und angewandte Mathematik, Tome 347 (1984), pp. 146-153. http://geodesic.mathdoc.fr/item/JRAM_1984__347_152600/