Matrix t2*K(2) in Subspace 129 with Dimension 4

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

(-15*t*U)/2 (t*U)/Sqrt[2] (-4*(-11 + Sqrt[22])*t^2)/(11*Sqrt[2 - 2*Sqrt[2/11]]) (-4*(11 + Sqrt[22])*t^2)/(11*Sqrt[2 + 2*Sqrt[2/11]])
(t*U)/Sqrt[2] -3*t*U (36*(11*Sqrt[2 - 2*Sqrt[2/11]] + Sqrt[242 - 22*Sqrt[22]])*t^2 + (-6*Sqrt[242 - 22*Sqrt[22]] + 11*(Sqrt[44 - 4*Sqrt[22]] + 4*Sqrt[11 - Sqrt[22]]))*U^2)/(66*Sqrt[52 - 8*Sqrt[22]]) (24*Sqrt[11]*t^2 - (11*Sqrt[2] + 2*Sqrt[11])*U^2)/(22*Sqrt[2 + 2*Sqrt[2/11]])
((4 - 4*Sqrt[2/11])*t^2)/Sqrt[2 - 2*Sqrt[2/11]] (36*(11*Sqrt[2 - 2*Sqrt[2/11]] + Sqrt[242 - 22*Sqrt[22]])*t^2 + (-6*Sqrt[242 - 22*Sqrt[22]] + 11*(Sqrt[44 - 4*Sqrt[22]] + 4*Sqrt[11 - Sqrt[22]]))*U^2)/(66*Sqrt[52 - 8*Sqrt[22]]) (t^2*(2783*U - 5115*Sqrt[2/(13 - 2*Sqrt[22])]*U + 1074*Sqrt[11/(13 - 2*Sqrt[22])]*U))/(-572*t + 88*Sqrt[22]*t) (-5*(12*Sqrt[11] + 121*Sqrt[(11 + Sqrt[22])/(11 - Sqrt[22])] - 11*Sqrt[(22*(11 + Sqrt[22]))/(11 - Sqrt[22])])*t*U)/396
(-4*(11 + Sqrt[22])*t^2)/(11*Sqrt[2 + 2*Sqrt[2/11]]) (24*Sqrt[11]*t^2 - (11*Sqrt[2] + 2*Sqrt[11])*U^2)/(22*Sqrt[2 + 2*Sqrt[2/11]]) (-5*(12*Sqrt[11] + 121*Sqrt[(11 + Sqrt[22])/(11 - Sqrt[22])] - 11*Sqrt[(22*(11 + Sqrt[22]))/(11 - Sqrt[22])])*t*U)/396 -((578 + 109*Sqrt[22] + 160*Sqrt[26 + 4*Sqrt[22]])*t*U)/(4*Sqrt[2 + 2*Sqrt[2/11]]*(11 + Sqrt[22])^(3/2))