Copoints in antimatroids. (English) Zbl 0463.05005
Combinatorics, graph theory and computing, Proc. 11th southeast. Conf., Boca Raton/Florida 1980, Vol. II, Congr. Numerantium 29, 535-544 (1980).
MSC:
05A15 | Exact enumeration problems, generating functions |
05C05 | Trees |
06A12 | Semilattices |
03E05 | Other combinatorial set theory |
05A05 | Permutations, words, matrices |
52A20 | Convex sets in \(n\) dimensions (including convex hypersurfaces) |