Springer Verlag, Ukrainian Mathematical Journal, 1(61), p. 1-13
DOI: 10.1007/s11253-009-0199-8
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Using the Luthar-Passi method, we investigate the classical Zassenhaus conjecture for the normalized unit group of the integral group ring of the Rudvalis sporadic simple group Ru. As a consequence, for this group we confirm Kimmerle's conjecture on prime graphs. ; Comment: 8 pages; updated bibliography; improved presentation of results in the main theorem