Bangor University - School of Computer Science Computational Higher-dimensional Discrete Algebra

CHDA: Home Page

From November 2016 new releases of these packages can be found on GitHub at https://gap-packages.github.io/

• groupoids, version 1.53 (04/10/17) at https://gap-packages.github.io/groupoids/
• IdRel, version 2.34 (20/10/16) at https://gap-packages.github.io/idrel/
• Kan, version 1.27 (20/10/16) at https://gap-packages.github.io/kan/
• XMod, version 2.63 (26/09/16) at https://gap-packages.github.io/xmod/

Packages

• introduction to the packages,
• notes on crossed modules and related gadgets

Personnel:

• Chris Wensley
• Ronnie Brown

Collaborators:

• Murat Alp (Dumlupinar University, Turkey)
• Gareth Evans
• Anne Heyworth (Open University, ex. Bangor and Leicester)
• Larry Lambe (MSSRC)
• Emma Moore
• Robert Rodrigues

Introduction:

Computational discrete algebra is concerned with algorithms for computing with groups, semigroups, categories, algebras, and related structures, as well as automorphism objects of combinatorial structures.

The two general-purpose CDA packages are GAP and MAGMA.

Work at Bangor is aimed at developing GAP packages implementing many of the new, higher-dimensional, structures for algebra and algebraic topology which are described in Ronnie Brown's web pages.

Talks

• talk on the CHDA packages at the GAP Authors' Workshop, Braunschweig, September 2007.

Preprints & Publications

• 2008, 2006, 2005, 2004, 2002, 2000, 1999, 1998, 1997, 1996

Mathematics home page School of Computer Science home page Bangor University home page Latest modification to this page: 06/11/17