A classification of nilpotent 3-BCI groups

Hiroki Koike, István Kovács

Given a finite group $G$ and a subset $S\subseteq G,$ the bi-Cayley graph $\bcay(G,S)$ is the graph whose vertex set is $G\times \{0,1\}$ and edge set is $\{\{(x,0),(s x,1)\} : x…