Abe, Takuro; Barakat, Mohamed; Cuntz, Michael; Hoge, Torsten; Terao, Hiroaki
(Zürich : European Mathematical Society Publishing House, 2016)
A Weyl arrangement is the arrangement defined by the root system of a finite Weyl group. When a set of positive roots is an ideal in the root poset, we call the corresponding arrangement an ideal subarrangement. Our main ...