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IdRel

A package for Identities among Relators

Version 2.31

01/06/2015

Anne Heyworth

Chris Wensley
Email: c.d.wensley@bangor.ac.uk
Homepage: http://pages.bangor.ac.uk/~mas023/
Address:
School of Computer Science, Bangor University,
Dean Street, Bangor, Gwynedd, LL57 1UT, U.K.

Abstract

The IdRel package was 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 second author at c.d.wensley@bangor.ac.uk.

Copyright

© 1999-2015 Anne Heyworth and Chris Wensley

IdRel 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 with the GAPDoc package of Frank Lübeck and Max Neunhöffer.

Contents

1 Introduction
2 Rewriting Systems
3 Logged Rewriting Systems
4 Monoid Polynomials
5 Module Polynomials
References
Index

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