surface

keyword tag · 4 problems

Title Source Status Imp. Posted
Consecutive non-orientable embedding obstructions opg open ★★★ 2007-03-27
Grunbaum's Conjecture opg disproved ★★★ 2007-04-04
5-local-tensions opg open ★★ 2007-06-22
Drawing disconnected graphs on surfaces opg partial ★★ 2007-05-12