Open stertooy opened 2 years ago
gap> G := ExamplesOfSomePcpGroups( 8 ); gap> T := Subgroup( G, [ G.1^3*G.2^6*G.3^2*G.5^44, G.2^12*G.3*G.5^61, G.3^3*G.5^30, G.4^3*G.5^30, G.5^162 ] ); gap> K := Subgroup( G, [ G.1^3*G.2^6*G.5^3, G.2^12, G.3*G.5^7, G.4^3*G.5^3, G.5^9 ] ); gap> IsNormal( K, T ); true gap> IsNormal( T, K ); true gap> IsSubgroup( K, T ); true gap> Index( K, T ); 54 gap> NormalIntersection( T, K ); Pcp-group with orders [ 0, 0, 0, 0, 0 ] gap> NormalIntersection( K, T ); [ this runs forever ]