Aclib -- A Library of 3- and 4-Dimensional Almost Crystallographic Groups
=========================================================================
by Karel Dekimpe and Bettina Eick
Introduction
------------
The package `aclib' contains the almost crystallographic groups as
classified by K. Dekimpe in the Springer Lecture Notes, Vol. 1639:
"Almost Bieberbach Groups: Affine and Polynomial Structures".
The groups are available as rational matrix groups. Further, all the
groups in the library are polycyclic. If the `Polycyclic' package for
computations with infinite polycyclic groups is installed, then also
polycyclic presentations for the almost crystallographic groups are
available and can be used for computations with these groups.
Support
-------
Please report any problems you may encounter using `aclib' at
<https://github.com/gap-packages/aclib/issues>
License
-------
The `aclib' package is licensed under the Artistic License 2.0.
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