Matrix t2*K(2) in Subspace 40 with Dimension 16

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

(-17*t*U)/4 ((8 + (8*I)*Sqrt[3])*t^2 + (-11 - I*Sqrt[3])*U^2)/24 -(Sqrt[3/2]*t*U)/2 ((3*I - Sqrt[3])*t^2)/6 -((3*I + 2*Sqrt[3])*t*U)/4 -((9*I + 5*Sqrt[3])*U^2)/(12*Sqrt[2]) ((-3*I + 5*Sqrt[3])*U^2)/(12*Sqrt[2]) (3*t*U)/(2*Sqrt[2]) (I/2)*(I + Sqrt[3])*t^2 ((2 + I*Sqrt[3])*t*U)/4 ((-1 + (3*I)*Sqrt[3])*t*U)/(2*Sqrt[2]) ((-4 - (4*I)*Sqrt[3])*t^2 + (1 - I*Sqrt[3])*U^2)/(6*Sqrt[2]) ((1/4 + I/4)*((-6 - 3*I)*Sqrt[4 - 2*Sqrt[3]] + (7 + 2*I)*(-3 + Sqrt[3]))*t*U)/(Sqrt[3]*(3 - Sqrt[3])^(3/2)) ((-3 + 9*I + (5 - 9*I)*Sqrt[3])*t*U)/(12*Sqrt[3 + Sqrt[3]]) ((3*I - 2*Sqrt[3])*t*U)/4 ((-3*I + Sqrt[3])*U^2)/8
((8 - (8*I)*Sqrt[3])*t^2 + I*(11*I + Sqrt[3])*U^2)/24 (-31*t*U)/12 0 -((3*I + 2*Sqrt[3])*t*U)/12 (I + 1/Sqrt[3])*t^2 (t*U)/Sqrt[6] ((9*I - 11*Sqrt[3])*t*U)/(6*Sqrt[2]) 0 (3*t*U)/4 (-1 - I*Sqrt[3])*t^2 ((4 - (4*I)*Sqrt[3])*t^2 + (-1 - I*Sqrt[3])*U^2)/(3*Sqrt[2]) ((-5 - (3*I)*Sqrt[3])*t*U)/(6*Sqrt[2]) 0 0 (8*(-3*I + Sqrt[3])*t^2 - (3*I + Sqrt[3])*U^2)/24 -((2*I + Sqrt[3])*t*U)/4
-(Sqrt[3/2]*t*U)/2 0 -2*t*U ((-I/4)*(-5*I + Sqrt[3])*U^2)/Sqrt[2] (t*(Sqrt[2]*U - I*Sqrt[6]*U))/4 (-1 - I*Sqrt[3])*t^2 -2*t^2 0 ((3*I + Sqrt[3])*U^2)/(4*Sqrt[2]) 0 0 0 0 0 (-3*t*U)/(2*Sqrt[2]) 0
((-3*I - Sqrt[3])*t^2)/6 ((3*I - 2*Sqrt[3])*t*U)/12 ((I/4)*(5*I + Sqrt[3])*U^2)/Sqrt[2] (-15*t*U)/4 (8*t^2 + (-1 - (3*I)*Sqrt[3])*U^2)/8 (3*t*U)/(2*Sqrt[2]) (3*t*U)/(2*Sqrt[2]) ((-3*I + Sqrt[3])*U^2)/(4*Sqrt[2]) ((3*I)/4)*t*U (-8*Sqrt[3]*t^2 - (-3*I + Sqrt[3])*U^2)/8 -(Sqrt[2]*(3*I + Sqrt[3])*t^2)/3 ((3*I + Sqrt[3])*t*U)/(3*Sqrt[2]) 0 0 (-I/2)*(-I + Sqrt[3])*t^2 ((-3*I)/4)*(-2*I + Sqrt[3])*t*U
((3*I - 2*Sqrt[3])*t*U)/4 (-I + 1/Sqrt[3])*t^2 (t*(Sqrt[2]*U + I*Sqrt[6]*U))/4 (8*t^2 + (-1 + (3*I)*Sqrt[3])*U^2)/8 (-3*t*U)/4 0 0 0 (8*Sqrt[3]*t^2 - (3*I + Sqrt[3])*U^2)/8 (-5*Sqrt[3]*t*U)/4 -((3*I + Sqrt[3])*t*U)/(2*Sqrt[2]) -(Sqrt[2]*(-3*I + Sqrt[3])*t^2)/3 0 0 (3*t*U)/4 0
((9*I - 5*Sqrt[3])*U^2)/(12*Sqrt[2]) (t*U)/Sqrt[6] (-1 + I*Sqrt[3])*t^2 (3*t*U)/(2*Sqrt[2]) 0 -4*t*U t*U (3*I - Sqrt[3])*t^2 -(Sqrt[3/2]*t*U)/2 0 -(U^2/Sqrt[3]) ((9*I + 7*Sqrt[3])*t*U)/6 (((-2 - 6*I)*Sqrt[18 - 6*Sqrt[3]] + (6 + 6*I)*Sqrt[6 - 2*Sqrt[3]])*t^2)/(6*Sqrt[4 - 2*Sqrt[3]]) (1 - I)*(2 - I + Sqrt[3])*Sqrt[2/(3 + Sqrt[3])]*t^2 ((-I/4)*(-I + Sqrt[3])*U^2)/Sqrt[2] ((5 + I*Sqrt[3])*t*U)/(2*Sqrt[2])
((3*I + 5*Sqrt[3])*U^2)/(12*Sqrt[2]) -((9*I + 11*Sqrt[3])*t*U)/(6*Sqrt[2]) -2*t^2 (3*t*U)/(2*Sqrt[2]) 0 t*U -4*t*U -2*Sqrt[3]*t^2 -(Sqrt[3/2]*t*U)/2 0 -((-3*I + Sqrt[3])*U^2)/6 (t*U)/Sqrt[3] (-4*(-3 + Sqrt[3])*t^2)/Sqrt[18 - 6*Sqrt[3]] (2*(Sqrt[2] + Sqrt[6])*t^2)/Sqrt[3 + Sqrt[3]] ((I/4)*(3*I + Sqrt[3])*U^2)/Sqrt[2] ((2 + I*Sqrt[3])*t*U)/Sqrt[2]
(3*t*U)/(2*Sqrt[2]) 0 0 ((3*I + Sqrt[3])*U^2)/(4*Sqrt[2]) 0 (-3*I - Sqrt[3])*t^2 -2*Sqrt[3]*t^2 -6*t*U ((I/4)*(3*I + Sqrt[3])*U^2)/Sqrt[2] (3*(1 - I*Sqrt[3])*t*U)/(2*Sqrt[2]) 0 0 0 0 (3*Sqrt[3/2]*t*U)/2 0
(-I/2)*(-I + Sqrt[3])*t^2 (3*t*U)/4 ((-3*I + Sqrt[3])*U^2)/(4*Sqrt[2]) ((-3*I)/4)*t*U (8*Sqrt[3]*t^2 - (-3*I + Sqrt[3])*U^2)/8 -(Sqrt[3/2]*t*U)/2 -(Sqrt[3/2]*t*U)/2 ((-I/4)*(-3*I + Sqrt[3])*U^2)/Sqrt[2] (-15*t*U)/4 (-24*t^2 - (3 + I*Sqrt[3])*U^2)/8 (-Sqrt[2] - I*Sqrt[6])*t^2 0 0 0 ((-3*I - Sqrt[3])*t^2)/2 (3*Sqrt[3]*t*U)/4
((2 - I*Sqrt[3])*t*U)/4 (-1 + I*Sqrt[3])*t^2 0 (-8*Sqrt[3]*t^2 - (3*I + Sqrt[3])*U^2)/8 (-5*Sqrt[3]*t*U)/4 0 0 (3*(1 + I*Sqrt[3])*t*U)/(2*Sqrt[2]) (-24*t^2 + I*(3*I + Sqrt[3])*U^2)/8 (-21*t*U)/4 (t*(Sqrt[2]*U + I*Sqrt[6]*U))/4 (Sqrt[2] - I*Sqrt[6])*t^2 0 0 -(Sqrt[3]*t*U)/4 0
((-1 - (3*I)*Sqrt[3])*t*U)/(2*Sqrt[2]) ((4 + (4*I)*Sqrt[3])*t^2 + I*(I + Sqrt[3])*U^2)/(3*Sqrt[2]) 0 -(Sqrt[2]*(-3*I + Sqrt[3])*t^2)/3 -((-3*I + Sqrt[3])*t*U)/(2*Sqrt[2]) -(U^2/Sqrt[3]) -((3*I + Sqrt[3])*U^2)/6 0 I*Sqrt[2]*(I + Sqrt[3])*t^2 (t*(Sqrt[2]*U - I*Sqrt[6]*U))/4 (-5*t*U)/2 ((-16*I)*(-I + Sqrt[3])*t^2 + (-5 - I*Sqrt[3])*U^2)/12 -(((3 + Sqrt[3])*t*U)/(Sqrt[6]*(3 - Sqrt[3])^(3/2))) ((-3 + 2*Sqrt[3])*t*U)/(3*Sqrt[2*(3 + Sqrt[3])]) -((-3*I + Sqrt[3])*t*U)/(2*Sqrt[2]) 0
((4*I)*(I + Sqrt[3])*t^2 + (1 + I*Sqrt[3])*U^2)/(6*Sqrt[2]) ((-5 + (3*I)*Sqrt[3])*t*U)/(6*Sqrt[2]) 0 ((-3*I + Sqrt[3])*t*U)/(3*Sqrt[2]) -(Sqrt[2]*(3*I + Sqrt[3])*t^2)/3 ((-9*I + 7*Sqrt[3])*t*U)/6 (t*U)/Sqrt[3] 0 0 (Sqrt[2] + I*Sqrt[6])*t^2 (I/12)*(16*(I + Sqrt[3])*t^2 + (5*I + Sqrt[3])*U^2) (-13*t*U)/6 0 0 -(4*(-3*I + Sqrt[3])*t^2 + (3*I + Sqrt[3])*U^2)/(6*Sqrt[2]) ((-I + Sqrt[3])*t*U)/(2*Sqrt[2])
((1/4 + I/4)*((3 + 6*I)*Sqrt[4 - 2*Sqrt[3]] - (2 + 7*I)*(-3 + Sqrt[3]))*t*U)/(Sqrt[3]*(3 - Sqrt[3])^(3/2)) 0 0 0 0 (((-2 + 6*I)*Sqrt[18 - 6*Sqrt[3]] + (6 - 6*I)*Sqrt[6 - 2*Sqrt[3]])*t^2)/(6*Sqrt[4 - 2*Sqrt[3]]) (-4*(-3 + Sqrt[3])*t^2)/Sqrt[18 - 6*Sqrt[3]] 0 0 0 -((Sqrt[18 - 6*Sqrt[3]] + 2*Sqrt[6 - 2*Sqrt[3]])*t*U)/(6*Sqrt[4 - 2*Sqrt[3]]) 0 (-2*(-9 + 2*Sqrt[3] + 12*Sqrt[4 - 2*Sqrt[3]])*t*U)/(Sqrt[4 - 2*Sqrt[3]]*(-3 + Sqrt[3])^2) -((-3 + Sqrt[3] - 3*Sqrt[4 - 2*Sqrt[3]])*t*U)/(6*Sqrt[2]) ((1/4 + I/4)*Sqrt[3]*(-3 + Sqrt[3] - (4 - I)*Sqrt[4 - 2*Sqrt[3]])*t*U)/(3 - Sqrt[3])^(3/2) 0
((-3 - 9*I + (5 + 9*I)*Sqrt[3])*t*U)/(12*Sqrt[3 + Sqrt[3]]) 0 0 0 0 (1 + I)*(2 + I + Sqrt[3])*Sqrt[2/(3 + Sqrt[3])]*t^2 (2*(Sqrt[2] + Sqrt[6])*t^2)/Sqrt[3 + Sqrt[3]] 0 0 0 ((-3 + 2*Sqrt[3])*t*U)/(3*Sqrt[2*(3 + Sqrt[3])]) 0 -((-3 + Sqrt[3] - 3*Sqrt[4 - 2*Sqrt[3]])*t*U)/(6*Sqrt[2]) (-7*t*U)/(3 + Sqrt[3]) ((-1/4 + I/4)*(-4 - I + Sqrt[3])*t*U)/Sqrt[3 + Sqrt[3]] 0
-((3*I + 2*Sqrt[3])*t*U)/4 (8*(3*I + Sqrt[3])*t^2 - (-3*I + Sqrt[3])*U^2)/24 (-3*t*U)/(2*Sqrt[2]) (I/2)*(I + Sqrt[3])*t^2 (3*t*U)/4 ((I/4)*(I + Sqrt[3])*U^2)/Sqrt[2] ((-I/4)*(-3*I + Sqrt[3])*U^2)/Sqrt[2] (3*Sqrt[3/2]*t*U)/2 ((3*I - Sqrt[3])*t^2)/2 -(Sqrt[3]*t*U)/4 -((3*I + Sqrt[3])*t*U)/(2*Sqrt[2]) -(4*(3*I + Sqrt[3])*t^2 + (-3*I + Sqrt[3])*U^2)/(6*Sqrt[2]) ((1/4 - I/4)*Sqrt[3]*(-3 + Sqrt[3] - (4 + I)*Sqrt[4 - 2*Sqrt[3]])*t*U)/(3 - Sqrt[3])^(3/2) ((-1/4 - I/4)*(-4 + I + Sqrt[3])*t*U)/Sqrt[3 + Sqrt[3]] (-21*t*U)/4 (-I/8)*(-3*I + Sqrt[3])*U^2
((3*I + Sqrt[3])*U^2)/8 -((-2*I + Sqrt[3])*t*U)/4 0 ((3*I)/4)*(2*I + Sqrt[3])*t*U 0 ((5 - I*Sqrt[3])*t*U)/(2*Sqrt[2]) ((2 - I*Sqrt[3])*t*U)/Sqrt[2] 0 (3*Sqrt[3]*t*U)/4 0 0 ((I + Sqrt[3])*t*U)/(2*Sqrt[2]) 0 0 (I/8)*(3*I + Sqrt[3])*U^2 (-15*t*U)/4