a := [ [ Z(3), 0*Z(3), Z(3), 0*Z(3), Z(3), Z(3) ], 
  [ Z(3)^0, 0*Z(3), Z(3), 0*Z(3), 0*Z(3), Z(3)^0 ], 
  [ Z(3)^0, Z(3), Z(3)^0, Z(3), Z(3)^0, Z(3) ], 
  [ 0*Z(3), 0*Z(3), Z(3), Z(3), Z(3), Z(3) ], 
  [ 0*Z(3), Z(3)^0, Z(3)^0, Z(3), Z(3)^0, Z(3) ], 
  [ Z(3), 0*Z(3), Z(3), Z(3), Z(3), 0*Z(3) ] ];
ConvertToMatrixRep(a);
b := [ [ 0*Z(3), 0*Z(3), 0*Z(3), Z(3)^0, Z(3)^0, Z(3) ], 
  [ Z(3)^0, 0*Z(3), 0*Z(3), Z(3), 0*Z(3), 0*Z(3) ], 
  [ Z(3)^0, 0*Z(3), Z(3), Z(3)^0, Z(3)^0, Z(3) ], 
  [ Z(3), Z(3)^0, Z(3)^0, Z(3), Z(3)^0, Z(3) ], 
  [ Z(3)^0, 0*Z(3), Z(3), Z(3)^0, 0*Z(3), Z(3) ], 
  [ Z(3)^0, Z(3), 0*Z(3), 0*Z(3), Z(3), 0*Z(3) ] ];
ConvertToMatrixRep(b);
v := [ Z(3), 0*Z(3), Z(3), Z(3), Z(3), Z(3) ];
ConvertToVectorRep(v);