DOAJ
Open Access
2014
Combinatorics of diagrams of permutations
Joel Brewster Lewis
Alejandro Morales
Abstrak
There are numerous combinatorial objects associated to a Grassmannian permutation $w_λ$ that index cells of the totally nonnegative Grassmannian. We study some of these objects (rook placements, acyclic orientations, various restricted fillings) and their q-analogues in the case of permutations $\mathcal{w}$ that are not necessarily Grassmannian.
Topik & Kata Kunci
Penulis (2)
J
Joel Brewster Lewis
A
Alejandro Morales
Akses Cepat
Informasi Jurnal
- Tahun Terbit
- 2014
- Sumber Database
- DOAJ
- DOI
- 10.46298/dmtcs.2435
- Akses
- Open Access ✓