On the NSE characterization of certain finite simple groups

S Rahbariyan, A Azad - Algebraic Structures and Their Applications, 2021 - as.yazd.ac.ir
For a group $ G $, $\pi_e (G) $ and $ s_m (G) $ are denoted the set of orders of elements
and the number of elements of order $ m $ in $ G $, respectively. Let ${\rm nse}(G)=\{s_m …