Haftungsausschluß.txt KontaktUnknown {[0] [0] [0]}diese Dinge liegen außhalb unserer Verantwortung
gap> G:=AlmostCrystallographicPcpGroup( 4, 50, [ 1, -4, 1, 2 ] );;
gap> R:=ResolutionAlmostCrystalGroup(G,20);
Resolution of length 20 in characteristic 0 for Pcp-group with orders
[ 4, 0, 0, 0, 0 ] .
gap> Size(R);
[ 10, 53, 137, 207, 223, 223, 223, 223, 223, 223, 223, 223, 223, 223, 223,
223, 223, 223, 223, 223 ]
gap> T:=Kernel(NaturalHomomorphismOnHolonomyGroup(G));;
gap> IsAbelian(T);
false
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