/* www-ATLAS of Group Representations. L2(19) represented as 18 x 18 matrices over GF(4). */ F:=GF(4); x:=CambridgeMatrix(1,F,18,[ "010000000000000000", "100000000000000000", "000100000000000000", "001000000000000000", "000001000000000000", "000010000000000000", "000000001000000000", "000000000100000000", "000000100000000000", "000000010000000000", "000000000000010000", "110000000001000000", "000000000000000100", "000000000010000000", "222310100003300110", "000000000000100000", "113201001003101300", "002020012101102221"]); y:=CambridgeMatrix(1,F,18,[ "001000000000000000", "011000000000000000", "101000000000000000", "000010000000000000", "000000100000000000", "000000010000000000", "000100000000000000", "000000000010000000", "000000000001000000", "000000000000100000", "000001000000000000", "000000000000001000", "000000000000000010", "000000000000000001", "000000001000000000", "310132023323013213", "000000000100000000", "121021121001001132"]); G:=MatrixGroup<18,F|x,y>; print "Group G is L2(19) < GL(18,GF(4))";