On groups that can be covered by conjugates of finitely many cyclic or procyclic subgroups

Yiftach Barnea, Rachel Camina, Mikhail Ershov +1

Given a discrete (resp. profinite) group $G$, we define $NCC(G)$ to be the smallest number of cyclic (resp. procyclic) subgroups of $G$ whose conjugates cover $G$. In this paper we…