Rewriting Systems and Embedding of Monoids in Groups
โ Scribed by Chouraqui, Fabienne
- Book ID
- 111937532
- Publisher
- Walter de Gruyter GmbH & Co. KG
- Year
- 2009
- Tongue
- English
- Weight
- 138 KB
- Volume
- 1
- Category
- Article
- ISSN
- 1867-1144
No coin nor oath required. For personal study only.
โฆ Synopsis
In this paper, a connection between rewriting systems and embedding of monoids in groups is found. We show that if a group with a positive presentation has a complete rewriting system โ that satisfies the condition that each rule in โ with positive left-hand side has a positive right-hand side, then the monoid presented by the subset of positive rules from โ embeds in the group. As an example, we give a simple proof that right angled Artin monoids embed in the corresponding right angled Artin groups. This is a special case of the well-known result of Paris that Artin monoids embed in their groups.
๐ SIMILAR VOLUMES
A finitely presented monoid has a decidable word problem if and only if it can be presented by some left-recursive convergent string-rewriting system if and only if it has a recursive cross-section. However, regular cross-sections or even context-free cross-sections do not suffice. This is shown by