Hecke-Kiselman monoids of small cardinality
Hecke-Kiselman monoids of small cardinality
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DOI:
10.1007/s00233-012-9422-2
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发表时间:
2012-06
期刊:
影响因子:
0.7
通讯作者:
R. Aragona;Alessandro D'Andrea
中科院分区:
文献类型:
--
作者:
R. Aragona;Alessandro D'Andrea
In this paper, we give a characterization of digraphsQ, |Q|≤4 such that the associated Hecke-Kiselman monoidsHQare finite. In general, a necessary condition forHQto be a finite monoid is thatQis acyclic and its Coxeter components are Dynkin diagrams. We show, by constructing examples, that such conditions are not sufficient.