𝔖 Bobbio Scriptorium
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Variétés sphériques de type A

✍ Scribed by D. Luna

Book ID
106300564
Publisher
Springer
Year
2001
Tongue
English
Weight
520 KB
Volume
94
Category
Article
ISSN
0073-8301

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Normalisateur et groupe d'Artin de type
Normalisateur et groupe d'Artin de type sphérique
✍ Eddy Godelle 📂 Article 📅 2003 🏛 Elsevier Science 🌐 English ⚖ 208 KB

Let (A, S) be an Artin group and X a subset of S; denote by A X the subgroup of A generated by X. When A is of spherical type, we prove that the normalizer and the commensurator of A X in A are equal and are the product of A X by the quasi-centralizer of A X in A. Looking the associated monoids A +