Normalizers and Free Groups in the Unit Group of an Integral Semigroup Ring
Normalizers and Free Groups in the Unit Group of an Integral Semigroup Ring ■
Ann Dooms, Ann Dooms, Ann Dooms, M. Veloso, M. Veloso, M. Veloso
Abstract ■
We constructed free groups in the unit group of an integral semigroup ring of a finite inverse semigroup using a bicyclic unit and its image under the natural involution.