Kazhdan-Lusztig cells in planar hyperbolic Coxeter groups and automata
Kazhdan-Lusztig cells in planar hyperbolic Coxeter groups and automata
复制标题
DOI:
10.1142/s0218196714500325
复制
发表时间:
2012-12
期刊:
影响因子:
--
通讯作者:
M. Belolipetsky;Paul E. Gunnells;R. Scott
中科院分区:
文献类型:
--
作者:
M. Belolipetsky;Paul E. Gunnells;R. Scott
Let C be a one- or two-sided Kazhdan–Lusztig cell in a Coxeter group (W, S), and let Red(C) be the set of reduced expressions of all w ∈ C, regarded as a language over the alphabet S. Casselman has conjectured that Red(C) is regular. In this paper, we give a conjectural description of the cells when W is the group corresponding to a hyperbolic polygon, and show that our conjectures imply Casselman's.