Matrix t2*K(2) in Subspace 96 with Dimension 16

(K(2) is the second-order Grosse operator)

0 (-I/4)*(-3*I + Sqrt[3])*U^2 0 0 0 0 ((3*I + Sqrt[3])*t*U)/(2*Sqrt[2]) ((-3*I + Sqrt[3])*t^2)/Sqrt[2] -(Sqrt[3/2]*t*U) 0 ((-3*I + Sqrt[3])*t^2)/Sqrt[2] -((-3*I + Sqrt[3])*t*U)/(2*Sqrt[2]) 0 (Sqrt[3]*t*U)/2 (-3*I + Sqrt[3])*t^2 ((-3*I + Sqrt[3])*t*U)/(2*Sqrt[2])
(I/4)*(3*I + Sqrt[3])*U^2 (-15*t*U)/4 (-I/2)*Sqrt[3/2]*U^2 0 0 -(Sqrt[3/2]*t*U)/2 0 ((3*I)*t*U)/Sqrt[2] 0 0 (((-3*I)/2)*t*U)/Sqrt[2] 0 -((-3*I + Sqrt[3])*t*U)/2 0 ((-3*I)/4)*t*U (((-3*I)/2)*U^2)/Sqrt[2]
0 (I/2)*Sqrt[3/2]*U^2 -3*t*U 0 0 0 0 0 0 ((-3*I + Sqrt[3])*t^2)/Sqrt[2] 0 0 (-3*(I + Sqrt[3])*t^2)/Sqrt[2] ((3*I + Sqrt[3])*t*U)/(2*Sqrt[2]) -(Sqrt[3/2]*U^2)/2 Sqrt[3]*t*U
0 0 0 -2*t*U (I*(I + Sqrt[3])*t*U)/Sqrt[2] 0 (I/2)*(I + Sqrt[3])*t*U 0 0 I*Sqrt[2]*(I + Sqrt[3])*t^2 0 -(t*U) Sqrt[2]*(3 + I*Sqrt[3])*t^2 0 0 0
0 0 0 ((-1 - I*Sqrt[3])*t*U)/Sqrt[2] -5*t*U 0 ((I/2)*(5*I + Sqrt[3])*t*U)/Sqrt[2] 0 ((I/2)*(I + Sqrt[3])*t*U)/Sqrt[2] 0 0 ((-1 - (3*I)*Sqrt[3])*t*U)/(2*Sqrt[2]) 0 0 0 0
0 -(Sqrt[3/2]*t*U)/2 0 0 0 -3*t*U -U^2/2 0 0 ((3 + I*Sqrt[3])*t*U)/Sqrt[2] (-I/2)*Sqrt[3]*t*U ((1 - I*Sqrt[3])*U^2)/4 0 0 (I/2)*Sqrt[3/2]*t*U 0
((-3*I + Sqrt[3])*t*U)/(2*Sqrt[2]) 0 0 -(t*(U + I*Sqrt[3]*U))/2 ((-I/2)*(-5*I + Sqrt[3])*t*U)/Sqrt[2] -U^2/2 -4*t*U (1 - I*Sqrt[3])*t^2 (I/4)*(5*I + Sqrt[3])*t*U -(U^2/Sqrt[2]) ((4 - (4*I)*Sqrt[3])*t^2 + (-1 - I*Sqrt[3])*U^2)/4 (t*(U + (5*I)*Sqrt[3]*U))/4 ((1 - I*Sqrt[3])*U^2)/(2*Sqrt[2]) 0 (Sqrt[2] - I*Sqrt[6])*t^2 (t*(U - I*Sqrt[3]*U))/2
((3*I + Sqrt[3])*t^2)/Sqrt[2] ((-3*I)*t*U)/Sqrt[2] 0 0 0 0 (1 + I*Sqrt[3])*t^2 (-7*t*U)/2 (-I/4)*(-I + Sqrt[3])*U^2 (t*(Sqrt[2]*U - I*Sqrt[6]*U))/4 t*U (-1 - I*Sqrt[3])*t^2 0 ((-1 - I*Sqrt[3])*t^2)/Sqrt[2] (t*U)/Sqrt[2] 0
-(Sqrt[3/2]*t*U) 0 0 0 ((-I/2)*(-I + Sqrt[3])*t*U)/Sqrt[2] 0 (-I/4)*(-5*I + Sqrt[3])*t*U (I/4)*(I + Sqrt[3])*U^2 -4*t*U 0 0 ((5 - I*Sqrt[3])*t*U)/4 0 0 0 t*(U - I*Sqrt[3]*U)
0 0 ((3*I + Sqrt[3])*t^2)/Sqrt[2] (-Sqrt[2] - I*Sqrt[6])*t^2 0 ((3 - I*Sqrt[3])*t*U)/Sqrt[2] -(U^2/Sqrt[2]) (t*(Sqrt[2]*U + I*Sqrt[6]*U))/4 0 -5*t*U 0 ((-I/2)*(-I + Sqrt[3])*U^2)/Sqrt[2] 0 0 0 ((-1 - I*Sqrt[3])*t^2)/Sqrt[2]
((3*I + Sqrt[3])*t^2)/Sqrt[2] (((3*I)/2)*t*U)/Sqrt[2] 0 0 0 (I/2)*Sqrt[3]*t*U ((4 + (4*I)*Sqrt[3])*t^2 + I*(I + Sqrt[3])*U^2)/4 t*U 0 0 -2*t*U t^2*(-1 - I*Sqrt[3] - U^2/(2*t^2)) (3*(3 + I*Sqrt[3])*t*U)/(2*Sqrt[2]) ((-1 - I*Sqrt[3])*t^2)/Sqrt[2] -(t*U)/(2*Sqrt[2]) 0
-((3*I + Sqrt[3])*t*U)/(2*Sqrt[2]) 0 0 -(t*U) ((-1 + (3*I)*Sqrt[3])*t*U)/(2*Sqrt[2]) ((1 + I*Sqrt[3])*U^2)/4 (t*(U - (5*I)*Sqrt[3]*U))/4 (-1 + I*Sqrt[3])*t^2 ((5 + I*Sqrt[3])*t*U)/4 ((I/2)*(I + Sqrt[3])*U^2)/Sqrt[2] t^2*(-1 + I*Sqrt[3] - U^2/(2*t^2)) -4*t*U -(U^2/Sqrt[2]) 0 I*Sqrt[2]*(I + Sqrt[3])*t^2 (I/2)*(I + Sqrt[3])*t*U
0 -((3*I + Sqrt[3])*t*U)/2 (-3*(-I + Sqrt[3])*t^2)/Sqrt[2] Sqrt[2]*(3 - I*Sqrt[3])*t^2 0 0 ((1 + I*Sqrt[3])*U^2)/(2*Sqrt[2]) 0 0 0 (3*(3 - I*Sqrt[3])*t*U)/(2*Sqrt[2]) -(U^2/Sqrt[2]) -3*t*U 0 0 ((3 - I*Sqrt[3])*t^2)/Sqrt[2]
(Sqrt[3]*t*U)/2 0 ((-3*I + Sqrt[3])*t*U)/(2*Sqrt[2]) 0 0 0 0 (I*(I + Sqrt[3])*t^2)/Sqrt[2] 0 0 (I*(I + Sqrt[3])*t^2)/Sqrt[2] 0 0 -6*t*U (I/4)*(I + Sqrt[3])*(4*t^2 + U^2) (I*(I + Sqrt[3])*t*U)/Sqrt[2]
(3*I + Sqrt[3])*t^2 ((3*I)/4)*t*U -(Sqrt[3/2]*U^2)/2 0 0 (-I/2)*Sqrt[3/2]*t*U (Sqrt[2] + I*Sqrt[6])*t^2 (t*U)/Sqrt[2] 0 0 -(t*U)/(2*Sqrt[2]) (-Sqrt[2] - I*Sqrt[6])*t^2 0 (-I/4)*(-I + Sqrt[3])*(4*t^2 + U^2) (-15*t*U)/4 U^2/(2*Sqrt[2])
((3*I + Sqrt[3])*t*U)/(2*Sqrt[2]) (((3*I)/2)*U^2)/Sqrt[2] Sqrt[3]*t*U 0 0 0 (t*(U + I*Sqrt[3]*U))/2 0 t*(U + I*Sqrt[3]*U) (I*(I + Sqrt[3])*t^2)/Sqrt[2] 0 -(t*(U + I*Sqrt[3]*U))/2 ((3 + I*Sqrt[3])*t^2)/Sqrt[2] ((-1 - I*Sqrt[3])*t*U)/Sqrt[2] U^2/(2*Sqrt[2]) -5*t*U