DOAJ
Open Access
2014
On Bruhat posets associated to compositions
Mahir Bilen Can
Yonah Cherniavsky
Abstrak
The purpose of this work is to initiate a combinatorial study of the Bruhat-Chevalley ordering on certain sets of permutations obtained by omitting the parentheses from their standard cyclic notation. In particular, we show that these sets form bounded, graded, unimodal, rank-symmetric and EL-shellable posets. Moreover, we determine the homotopy types of the associated order complexes.
Topik & Kata Kunci
Penulis (2)
M
Mahir Bilen Can
Y
Yonah Cherniavsky
Akses Cepat
Informasi Jurnal
- Tahun Terbit
- 2014
- Sumber Database
- DOAJ
- DOI
- 10.46298/dmtcs.2410
- Akses
- Open Access ✓