GAP Package recog

Warning: This package is still under development and this version is to be considered a working, but preliminary one.

This package contains a collection of methods for the constructive recognition of groups. It is mostly intended for permutation groups, matrix groups and projective groups.

The current version of this package is version 1.5.1, released on 2026-05-19. For more information, please refer to the package manual. There is also a README file.

License: GPL-3.0-or-later

Dependencies

This package requires GAP version >=4.13

The following other GAP packages are needed:

AtlasRep >= 2.1.0
FactInt >= 1.6.3
Forms >= 1.2.11
genss >= 1.6.8
Orb >= 4.9.0

Authors

Max Neunhöffer, Ákos Seress.

Contributors

Nurullah Ankaralioglu, Dominik Bernhardt, Peter Brooksbank, Frank Celler, Paula Hähndel, Stephen Howe, Alexander Hulpke, Christopher Jefferson, Maska Law, Steve Linton, Gunter Malle, Till Müller, Alice Niemeyer, Eamonn O’Brien, Colva M. Roney-Dougal, Sergio Siccha, Martin Wagner, Torben Wiedemann, Wilf Wilson, Madeleine Whybrow.

Citing

Please, cite this package as

[NS26] Neunhöffer, M. and Seress, Á., recog, A package for constructive recognition of permutation and matrix groups, Version 1.5.1 (2026)
(GAP package), https://gap-packages.github.io/recog.

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

Feedback

For bug reports, feature requests and suggestions, please use the issue tracker.