Matrix t2*K(2) in Subspace 105 with Dimension 14

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

-3*t*U -U^2/2 ((I/2)*(I + Sqrt[3])*U^2)/Sqrt[2] (-I/2)*Sqrt[3]*t*U 0 ((3 + I*Sqrt[3])*t*U)/4 0 0 (I/4)*(I + Sqrt[3])*t*U -(Sqrt[2]*t*U) 0 (t*(U - I*Sqrt[3]*U))/2 0 ((3 + I*Sqrt[3])*t*U)/4
-U^2/2 (-9*t*U)/2 ((1 - I*Sqrt[3])*t*U)/Sqrt[2] (-1 + I*Sqrt[3])*t^2 0 -2*t^2 (t*(U - I*Sqrt[3]*U))/2 (I/2)*(I + Sqrt[3])*t*U (-1 + I*Sqrt[3])*t^2 0 (t*(U + I*Sqrt[3]*U))/2 (-1 + I*Sqrt[3])*t^2 -(t*U) 0
((-I/2)*(-I + Sqrt[3])*U^2)/Sqrt[2] ((1 + I*Sqrt[3])*t*U)/Sqrt[2] -4*t*U 0 ((-I/2)*(-3*I + Sqrt[3])*t*U)/Sqrt[2] 0 0 (t*(Sqrt[2]*U - I*Sqrt[6]*U))/4 0 0 (I*(I + Sqrt[3])*t*U)/Sqrt[2] 0 ((I/2)*(I + Sqrt[3])*t*U)/Sqrt[2] 0
(I/2)*Sqrt[3]*t*U (-1 - I*Sqrt[3])*t^2 0 -5*t*U -U^2/2 ((7 - (3*I)*Sqrt[3])*t*U)/4 (8*t^2 + I*(I + Sqrt[3])*U^2)/4 (1 - I*Sqrt[3])*t^2 (t*(U - I*Sqrt[3]*U))/4 ((-I/2)*(-I + Sqrt[3])*t*U)/Sqrt[2] 0 (I/2)*(I + Sqrt[3])*t*U (-1 + I*Sqrt[3])*t^2 (t*(U - I*Sqrt[3]*U))/4
0 0 ((I/2)*(3*I + Sqrt[3])*t*U)/Sqrt[2] -U^2/2 -4*t*U -U^2/2 (3*(3 - I*Sqrt[3])*t*U)/4 -(t*(U + I*Sqrt[3]*U))/4 0 0 (-I/2)*Sqrt[3]*t*U 0 (I/4)*(I + Sqrt[3])*t*U 0
((3 - I*Sqrt[3])*t*U)/4 -2*t^2 0 ((7 + (3*I)*Sqrt[3])*t*U)/4 -U^2/2 -5*t*U t^2*(1 - I*Sqrt[3] - U^2/(2*t^2)) (-1 - I*Sqrt[3])*t^2 (t*U)/2 -((t*U)/Sqrt[2]) 0 -(t*U) (1 + I*Sqrt[3])*t^2 -(t*U)/2
0 (t*(U + I*Sqrt[3]*U))/2 0 (8*t^2 + (-1 - I*Sqrt[3])*U^2)/4 (3*(3 + I*Sqrt[3])*t*U)/4 t^2*(1 + I*Sqrt[3] - U^2/(2*t^2)) -5*t*U -(t*U)/2 2*t^2 0 (I/4)*(I + Sqrt[3])*t*U 2*t^2 -(t*(U + I*Sqrt[3]*U))/4 0
0 -(t*(U + I*Sqrt[3]*U))/2 (t*(Sqrt[2]*U + I*Sqrt[6]*U))/4 (1 + I*Sqrt[3])*t^2 (I/4)*(I + Sqrt[3])*t*U (-1 + I*Sqrt[3])*t^2 -(t*U)/2 -4*t*U t^2*(1 + I*Sqrt[3] - U^2/(2*t^2)) 0 ((3 + I*Sqrt[3])*t*U)/4 (1 + I*Sqrt[3])*t^2 -(t*(U + (5*I)*Sqrt[3]*U))/4 ((1 - I*Sqrt[3])*U^2)/4
-(t*(U + I*Sqrt[3]*U))/4 (-1 - I*Sqrt[3])*t^2 0 (t*(U + I*Sqrt[3]*U))/4 0 (t*U)/2 2*t^2 t^2*(1 - I*Sqrt[3] - U^2/(2*t^2)) -4*t*U 0 0 t*U ((4*I)*(I + Sqrt[3])*t^2 + (-1 - I*Sqrt[3])*U^2)/4 ((-3*I)/2)*Sqrt[3]*t*U
-(Sqrt[2]*t*U) 0 0 ((I/2)*(I + Sqrt[3])*t*U)/Sqrt[2] 0 -((t*U)/Sqrt[2]) 0 0 0 -5*t*U ((-I/2)*(-I + Sqrt[3])*U^2)/Sqrt[2] ((1 - I*Sqrt[3])*t*U)/Sqrt[2] 0 ((3 + I*Sqrt[3])*t*U)/(2*Sqrt[2])
0 (t*(U - I*Sqrt[3]*U))/2 ((-1 - I*Sqrt[3])*t*U)/Sqrt[2] 0 (I/2)*Sqrt[3]*t*U 0 -(t*(U + I*Sqrt[3]*U))/4 ((3 - I*Sqrt[3])*t*U)/4 0 ((I/2)*(I + Sqrt[3])*U^2)/Sqrt[2] -6*t*U (-I/4)*(-I + Sqrt[3])*U^2 (-I/4)*(-3*I + Sqrt[3])*t*U 0
(t*(U + I*Sqrt[3]*U))/2 (-1 - I*Sqrt[3])*t^2 0 -(t*(U + I*Sqrt[3]*U))/2 0 -(t*U) 2*t^2 (1 - I*Sqrt[3])*t^2 t*U ((1 + I*Sqrt[3])*t*U)/Sqrt[2] (I/4)*(I + Sqrt[3])*U^2 (-9*t*U)/2 (-1 + I*Sqrt[3])*t^2 0
0 -(t*U) ((-I/2)*(-I + Sqrt[3])*t*U)/Sqrt[2] (-1 - I*Sqrt[3])*t^2 -(t*(U + I*Sqrt[3]*U))/4 (1 - I*Sqrt[3])*t^2 (I/4)*(I + Sqrt[3])*t*U ((-1 + (5*I)*Sqrt[3])*t*U)/4 ((-4 - (4*I)*Sqrt[3])*t^2 + I*(I + Sqrt[3])*U^2)/4 0 (I/4)*(3*I + Sqrt[3])*t*U (-1 - I*Sqrt[3])*t^2 -4*t*U -U^2/2
((3 - I*Sqrt[3])*t*U)/4 0 0 (t*(U + I*Sqrt[3]*U))/4 0 -(t*U)/2 0 ((1 + I*Sqrt[3])*U^2)/4 ((3*I)/2)*Sqrt[3]*t*U ((3 - I*Sqrt[3])*t*U)/(2*Sqrt[2]) 0 0 -U^2/2 -5*t*U