| Rui Duarte (Univ. Aveiro) |
Constructions of bipartite hypermaps
|
2009-10-07 |
| António João Breda (Univ. Aveiro) |
Chirality under a combinatorial point of view
|
2009-07-15 |
| Marilena Barnabei (Univ. Bologna, Italy) |
Restricted involutions and Motzkin paths
|
2009-06-16 |
| Ana Paula Santana (CMUC/Mat. FCTUC) |
Schur algebras
|
2009-05-26 |
| Alessandro Conflitti (CMUC) |
Whitney numbers of order ideals for some interesting classes of posets
|
2009-04-28 |