[GAP Forum] From crystallographic to PcpGroups

[Bettina Eick]

Dear Diego Sulca, dear Forum,

> Is there a function "function(G)" such that for a given group G (which I
> already know it is polycyclic) it returns a Pcp group=function(G) which is
> isomorphic to G?.
> I am mainly interested when the group G is a space group. They are in the
> package Cryst but they are not as Pcp groups.

There is a function IsomorphismPcpGroup. This applies to space groups.

Best wishes,

Bettina