On semifir monoid rings

• Autores: Ferran Cedó
• Localización: Publicacions matematiques, ISSN 0214-1493, Vol. 33, Nº 1, 1989, págs. 123-132
• Idioma: inglés
• DOI: 10.5565/publmat_33189_09
• Títulos paralelos:
  • Sobre anillos monoides
• Enlaces
  • Texto completo
• Resumen

  • We give a new condition on a monoid M for the monoid ring F[M] to be a 2-fir. Furthermore, we construct a monoid M that satisfies all the currently known necessary conditions for F[M] to be a semifir and that the group of units of M is trivial, but M is not a directed union of free monoids.