Observations on coset enumeration

  • Todd and Coxeter's method for enumerating cosets of finitely generated subgroups in finitely presented groups (abbreviated by Tc here) is one famous method from combinatorial group theory for studying the subgroup problem. Since prefix string rewriting is also an appropriate method to study this problem, prefix string rewriting methods have been compared to Tc. We recall and compare two of them briefly, one by Kuhn and Madlener [4] and one by Sims [15]. A new approach using prefix string rewriting in free groups is derived from the algebraic method presented by Reinert, Mora and Madlener in [14] which directly emulates Tc. It is extended to free monoids and an algebraic characterization for the "cosets" enumerated in this setting is provided.

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Metadaten
Author:Birgit Reinert
URN (permanent link):urn:nbn:de:hbz:386-kluedo-7622
Serie (Series number):Reports on Computer Algebra (ZCA Report) (23)
Document Type:Preprint
Language of publication:English
Year of Completion:1998
Year of Publication:1998
Publishing Institute:Technische Universität Kaiserslautern
Tag:Gröbner bases in monoid and group rings; coset enumeration ; prefix string rewriting ; subgroup problem
Faculties / Organisational entities:Fachbereich Mathematik
DDC-Cassification:510 Mathematik

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