# XMod

Crossed Modules and Cat1-Groups

Version 2.81
Released 2020-05-25

This project is maintained by Chris Wensley

# GAP Package XMod

The XMod package provides a collection of functions for computing with crossed modules and cat1-groups, their derivations and sections, morphisms of these structures, and higher-dimensional generalisations.

The current version of this package is version 2.81, released on 2020-05-25. For more information, please refer to the package manual. There is also a README file.

## Dependencies

This package requires GAP version >=4.11.0

The following other GAP packages are needed:

The following additional GAP packages are not required, but suggested:

## Authors

Chris Wensley, Murat Alp, Alper Odabas, Enver Onder Uslu.

## Citing

You can get more info by typing Cite("XMod"); in the gap prompt.