#### Filter Results:

- Full text PDF available (0)

#### Publication Year

1983

2003

- This year (0)
- Last 5 years (0)
- Last 10 years (0)

#### Publication Type

#### Co-author

#### Journals and Conferences

Learn More

- Raul Cordovil, Komei Fukuda, Maria Leonor Moreira
- Discrete Mathematics
- 1991

Cordovil, R., K. Fukuda and M.L. Moreira, Clutters and matroids, Discrete Mathematics 89 (1991) 161-171. A map on clutters (collections of incomparable sets of a given set) is a function defined from the class of all clutters to itself, that sends a clutter on a ground set E to a clutter on the same set. Here we study two maps on clutters, the blocker map… (More)

- Richard F. Booth, Maria Leonor Moreira, Maria Rosário Pinto
- Discrete Mathematics
- 2003

Characterisations of symplectic and orthogonal Lagrangian matroids in terms of basis exchange are well known. We de4ne circuits of Lagrangian matroids in a natural way and characterise Lagrangian matroids in terms of circuit axioms. We go on to characterise orthogonal Lagrangian matroids in terms of circuits, and prove a result that may be useful in… (More)

- ‹
- 1
- ›