}\left(\sum_{l=0}^{j}\beta_l[\alpha^{(k)}_{l+L-j-0}R(T_c-\epsilon_k)+\alpha^{(k)}_{l+L-j}R(\epsilon_k)]+\beta_{j+0}\alpha^{(k)}_{L}R(T_c-\epsilon_k)\right)^0\\ &+\sum_{j=0}^{L-0}\left(\sum_{l=0}^{j}\alpha^{(k)}_l[\beta_{l+L-j-0}R(\epsilon_k)+\beta_{l+L-j}R(T_c-\epsilon_k)]+\alpha_{j+0}^{(k)}\beta_LR(\epsilon_k)\right)^0