The GAP 4 package XModAlg

Introduction

This package allows for computation with crossed modules of commutative algebras; cat1-algebras; and morphisms of these structures.

Distribution

• The 'XModAlg' package is distributed with the deposited GAP packages, see: https://www.gap-system.org/Packages/xmodalg.html
• It will, in due course, be available from the GitHub repository at: https://gap-packages.github.io/xmodalg/

Copyright

The 'XModAlg' package is Copyright © Zekeriya Arvasi and Alper Odabas et al, 2014--2025.

'XModAlg' 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.

For details, see https://www.gnu.org/licenses/gpl.html.

Installation

• unpack xmod-<version_number>.zip in the pkg subdirectory of the GAP root directory.
• From within GAP load the package with:

  gap> LoadPackage("XModAlg");
  true
  
• The file manual.pdf is in the doc subdirectory.

Contact

If you have a question relating to 'XModAlg', encounter any problems, or have a suggestion for extending the package in any way, please

• report an issue at: https://github.com/gap-packages/xmodalg/issues/new
• or email: mailto:[email protected]