V {\displaystyle N_{M_{2}}V\setminus V\to N_{M_{2}}V\setminus V} Bandsum(英语:Bandsum) Prime decomposition of 3-manifolds(英语:Prime decomposition of 3-manifolds)
b k d 2 n − k ( k ) {\displaystyle S_{n}^{(k+1)}:=\sum \limits _{k=-N}^{N}{a_{k}S_{2n-k}^{(k)}+\sum \limits _{k=-N}^{N}{b_{k}d_{2n-k}^{(k)}}}} 或是導入Z轉換,以k=J-1