Zassenhaus conjecture for central extensions of S 5
Zassenhaus conjecture for central extensions of S 5
We confirm a conjecture of Zassenhaus about rational conjugacy of torsion units in integral group rings for a covering group of the symmetric group S5 and for the general linear group GL(2, 5). The first result, together with others from the literature, settles the conjugacy question for units of prime-power …