B. Mohar et P. Rosenstiehl, TESSELLATION AND VISIBILITY REPRESENTATIONS OF MAPS ON THE TORUS, Discrete & computational geometry, 19(2), 1998, pp. 249-263
Citations number
15
Categorie Soggetti
Computer Science Theory & Methods",Mathematics,"Computer Science Theory & Methods",Mathematics
The model of the torus as a parallelogram in the plane with opposite s
ides identified enables us to define two families of parallel lines an
d to tessellate the torus, then to associate to each tessellation a to
roidal map with an upward drawing. It is proved that a toroidal map ha
s a tessellation representation if and only if its universal cover is
2-connected. Those graphs that admit such an embedding in the torus ar
e characterized.