/* www-ATLAS of Group Representations. U3(4) 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", "111100000001000000", "000000000000000100", "000000000010000000", "000000000000000001", "000000000000100000", "220000232310210210", "000000000000001000"]); y:=CambridgeMatrix(1,F,18,[ "110000000000000000", "001000000000000000", "011000000000000000", "000010000000000000", "000000100000000000", "000000010000000000", "000100000000000000", "000000000010000000", "000000000001000000", "000000000000100000", "000001000000000000", "000000000000001000", "000000000000000010", "001232332331220200", "000000001000000000", "111310310113313023", "000000000100000000", "100312002110303202"]); G:=MatrixGroup<18,F|x,y>; print "Group G is U3(4) < GL(18,GF(4))";