Geodesic
Universal coverings of PL-mainfolds via coloured graphs.
Aequationes mathematicae, Tome 44 (1992) no. 1, pp. 60-71.

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

Mots-clés : coloured map, type of a manifold, representation of piecewise linear manifolds by edge-coloured graphs, three-manifold, universal covering maps, type, surfaces 
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     author = {Antonio Costa and Luigi Grasselli},
     title = {Universal coverings of {PL-mainfolds} via coloured graphs.},
     journal = {Aequationes mathematicae},
     pages = {60--71},
     publisher = {mathdoc},
     volume = {44},
     number = {1},
     year = {1992},
     zbl = {0764.57004},
     url = {http://geodesic.mathdoc.fr/item/AM2_1992__44_1_137480/}
}
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Antonio Costa; Luigi Grasselli. Universal coverings of PL-mainfolds via coloured graphs.. Aequationes mathematicae, Tome 44 (1992) no. 1, pp. 60-71. http://geodesic.mathdoc.fr/item/AM2_1992__44_1_137480/