Merge pull request #5 from fingolfin/mh/implications

Refine filters for a NormalizerInGLnZ method
gap-packages · May 28, 2019 · 266891b · 266891b
2 parents 8acfc76 + 3ca5979
commit 266891b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/normalizer.gi b/lib/normalizer.gi
@@ -7,7 +7,7 @@
 
 InstallMethod( NormalizerInGLnZ, 
  "for PointGroups of space groups from the cryst. groups catalogue",
- true, [ IsPointGroup ], 0,
+ true, [ IsPointGroup and IsCyclotomicMatrixGroup ], 0,
 function( P )
  local S, p, N, s, gen;
  S := AffineCrystGroupOfPointGroup( P );