Normalizers and Free Groups in the Unit Group of an Integral Semigroup Ring

Ann Dooms, M. Veloso

Research output: Contribution to journalArticle

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.
Original languageEnglish
Pages (from-to)655-669
Number of pages15
JournalJournal of Algebra and Its Applications
Volume6
Publication statusPublished - 1 Aug 2007

Keywords

  • free group
  • units
  • semigroup ring
  • normalizer

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