!$ k_\infty = \large{\nu_1 \textstyle \sum_{f1} \textstyle \sum_{a2} + \nu_2 \textstyle \sum_{f2} \textstyle \sum_{s}^{1 \rightarrow 2} \over \textstyle \sum_{R1} \textstyle \sum_{a2}} !$

!$ k_\infty = \large{\nu_2 \textstyle \sum_{f2} \textstyle \sum_{a2} + \nu_1 \textstyle \sum_{f1} \textstyle \sum_{s}^{1 \rightarrow 2} \over D_1 \textstyle \sum_{R1} + D_2 \textstyle \sum_{a2}} !$

!$ k_\infty = \large{\nu_2 \textstyle \sum_{f2} \textstyle \sum_{a2} + \nu_1 \textstyle \sum_{f1} \textstyle \sum_{s}^{2 \rightarrow 1} \over \textstyle \sum_{R1} + \textstyle \sum_{a2}} !$

!$ k_\infty = \large{\nu_1 \textstyle \sum_{f1} \textstyle \sum_{a2} + \nu_2 \textstyle \sum_{f2} \textstyle \sum_{s}^{2 \rightarrow 1} \over \textstyle \sum_{R1} \textstyle \sum_{a2}} !$

!$ k_\infty = \large{\nu_2 \textstyle \sum_{f2} \textstyle \sum_{a2} + \nu_1 \textstyle \sum_{f1} \textstyle \sum_{s}^{2 \rightarrow 1} \over D_1 \textstyle \sum_{R1} + D_2 \textstyle \sum_{a2}} !$