local w, result; w := E(3); result := rec(); result.comment := "U42 as 5 x 5 matrices\n\ "; result.symmetricforms := [ ]; result.antisymmetricforms := [ ]; result.hermitianforms := [ ]; result.centralizeralgebra := [ ]; result.generators := [ [[-1,0,0,0,0], [0,-1,0,0,0], [0,0,-1,0,0], [0,0,0,0,1], [0,0,0,1,0]] , [[0,1,0,0,0], [0,0,1,0,0], [0,0,0,1,0], [w^2,1,-w^2,w,-w], [0,-w^2,0,0,-w]]]; return result;