Abstract:
Considering the groups $PSL_3(2^m)$ and $PSU_3(q^2)$, we find the minimal number of generating involutions whose product is $1$. This number is $7$ for $PSU_3(3^2)$ and $5$ or $6$ in the remaining cases.
Keywords:finite simple group, generating set of involutions, character of a group representation, special linear and unitary groups.