OP-00328 Open Unbounded chromatic number of associahedron graphs CO · AIM Open Applied Problems · associahedra · flip graphs · graph colorings
OP-00852 Open A sharp differing-edge bound for convex plane-tree flips CO · AIM Open Applied Problems · flip graphs · non-crossing spanning trees
OP-00853 Open The happy-edge conjecture for convex plane spanning trees CO · AIM Open Applied Problems · flip graphs · non-crossing spanning trees
OP-00888 Open Connectivity of plane spanning-path reconfiguration CO · AIM Open Applied Problems · flip graphs · plane spanning paths · reconfiguration
OP-01079 Open Flip-graph connectivity of tetrahedralizations in three dimensions MG · flip graph · tetrahedralization · The Open Problems Project