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

Format Sitasi

Can, M.B., Cherniavsky, Y. (2014). On Bruhat posets associated to compositions. https://doi.org/10.46298/dmtcs.2410

Akses Cepat

Lihat di Sumber doi.org/10.46298/dmtcs.2410
Informasi Jurnal
Tahun Terbit
2014
Sumber Database
DOAJ
DOI
10.46298/dmtcs.2410
Akses
Open Access ✓