Outer automorphism groups of ordered permutation groups
نویسندگان
چکیده
منابع مشابه
On Outer Automorphism Groups of Coxeter Groups
It is shown that the outer automorphism group of a Coxeter group W of nite rank is nite if the Coxeter graph contains no innnite bonds. A key step in the proof is to show that if the group is irreducible and 1 and 2 any two bases of the root system of W, then 2 = w 1 for some w 2 W. The proof of this latter fact employs some properties of the dominance order on the root system introduced by Bri...
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ژورنال
عنوان ژورنال: Forum Mathematicum
سال: 2002
ISSN: 0933-7741,1435-5337
DOI: 10.1515/form.2002.026