Crystallographic arrangements: Weyl groupoids and simplicial arrangements
Crystallographic arrangements: Weyl groupoids and simplicial arrangements
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晶体排列:Weyl群群和单纯排列
DOI:
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发表时间:
2010
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通讯作者:
Michael Cuntz
中科院分区:
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作者:
Michael Cuntz
We introduce the simple notion of a ‘crystallographic arrangement’ and prove a one‐to‐one correspondence between these arrangements and the connected simply connected Cartan schemes for which the real roots are a finite root system (up to equivalence on both sides). Thus, the classification of ‘finite Weyl groupoids’ leads to a complete classification of this large subclass of the class of simplicial arrangements.