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idrel

Identities among relations

2.46

23 January 2024

Anne Heyworth

Chris Wensley
Email: cdwensley.maths@btinternet.com
Homepage: https://github.com/cdwensley

Abstract

IdRel is a GAP package originally implemented in 1999, using the GAP 3 language, when the first author was studying for a Ph.D. in Bangor.

This package is designed to compute a minimal set of generators for the module of the identities among relators of a group presentation. It does this using

IdRel became an accepted GAP package in May 2015.

Bug reports, suggestions and comments are, of course, welcome. Please contact the last author at cdwensley.maths@btinternet.com or submit an issue at the GitHub repository https://github.com/gap-packages/idrel/issues/.

Copyright

© 1999-2024 Anne Heyworth and Chris Wensley

The IdRel package is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

Acknowledgements

This documentation was prepared using the GAPDoc [LN17] and AutoDoc [GH17] packages.

The procedure used to produce new releases uses the package GitHubPagesForGAP [Hor14] and the package ReleaseTools.

Contents

1 Introduction
2 Rewriting Systems
3 Logged Rewriting Systems
4 Monoid Polynomials
5 Module Polynomials
6 Identities Among Relators
References
Index

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