/* www-ATLAS of Group Representations. 2.L2(13) represented as 14 x 14 matrices over GF(49). */ F:=GF(49); x:=CambridgeMatrix(3,F,14,\[ 0,1,0,0,0,0,0,0,0,0,0,0,0,0, 6,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,1,0,0,0,0,0,0,0,0,0,0, 0,0,6,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,1,0,0,0,0,0,0,0,0, 0,0,0,0,6,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,1,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,1,0,0,0,0, 0,0,0,0,0,0,6,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,6,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,1, 23,43,38,3,28,1,24,43,9,27,37,7,1,13, 10,30,46,46,27,14,18,24,7,43,7,44,42,15, 0,0,0,0,0,0,0,0,0,0,6,0,0,0]); y:=CambridgeMatrix(3,F,14,\[ 22,6,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,1,0,0,0,0,0,0,0,0,0,0,0, 27,47,34,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,1,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,1,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,1,0,0,0,0,0,0, 0,0,0,1,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,1,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,1,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,1,0, 0,0,0,0,0,1,0,0,0,0,0,0,0,0, 45,36,37,46,6,19,39,36,11,16,19,17,8,28, 15,35,30,6,7,22,4,9,45,9,22,16,32,1, 14,25,18,0,8,5,34,10,37,6,18,40,13,13]); G:=MatrixGroup<14,F|x,y>; print "Group G is 2.L2(13) < GL(14,GF(49))";