21745 articles – 15574 Notices  [english version]

hal-00687691, version 2

Monoids of O-type, subword reversing, and ordered groups

Patrick Dehornoy (, http://www.math.unicaen.fr/~dehornoy) 1

(15/04/2012)

Résumé : We describe a simple scheme for constructing finitely generated monoids in which left-divisibility is a linear ordering and for practically investigating these monoids. The approach is based on subword reversing, a general method of combinatorial group theory, and connected with Garside theory, here in a non-Noetherian context. As an application we describe several families of ordered groups whose space of left-invariant orderings orderings has an isolated point, including torus knot groups and some of their amalgamated products.

  • 1 :  Laboratoire de Mathématiques Nicolas Oresme (LMNO)
  • CNRS : UMR6139 – Université de Caen Basse-Normandie
  • Domaine : Mathématiques/Théorie des groupes
  • Mots-clés : monoid presentation – subword reversing – divisibility – quasi-central element – ordered group – space of orderings – Garside theory
  • Versions disponibles :  v1 (14-04-2012) v2 (23-04-2012) v3 (08-05-2012)
 
  • hal-00687691, version 2
  • oai:hal.archives-ouvertes.fr:hal-00687691
  • Contributeur : 
  • Soumis le : Samedi 21 Avril 2012, 20:10:59
  • Dernière modification le : Lundi 23 Avril 2012, 08:44:56