0.10
Non-Shellable Simplicial 3-Ball
with 9 Vertices
A vertex-minimal non-shellable simplicial 3-ball
with 9 vertices and 18 facets.
52B22
52B05
57Q15
shellability
simplicial balls and spheres
constructibility
vertex-decomposability
PL and non-PL triangulations
0, 1, 2, 3
0, 1, 2, 4
0, 1, 4, 5
0, 1, 5, 7
0, 1, 6, 8
0, 1, 7, 8
0, 2, 3, 4
0, 6, 7, 8
1, 2, 3, 6
1, 2, 4, 5
1, 2, 5, 8
1, 2, 6, 8
1, 5, 7, 8
2, 3, 4, 7
2, 3, 6, 7
2, 4, 6, 7
2, 4, 6, 8
4, 6, 7, 8