On semifir monoid rings.
Cedó Gine, Ferrán
Publicacions Matemàtiques, Tome 33 (1989), p. 123-132 / Harvested from Biblioteca Digital de Matemáticas
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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.

Publié le : 1989-01-01
DMLE-ID : 3628 
@article{urn:eudml:doc:41071,
     title = {On semifir monoid rings.},
     journal = {Publicacions Matem\`atiques},
     volume = {33},
     year = {1989},
     pages = {123-132},
     zbl = {0686.20043},
     mrnumber = {MR1004229},
     language = {en},
     url = {http://dml.mathdoc.fr/item/urn:eudml:doc:41071}
}

Cedó Gine, Ferrán. On semifir monoid rings.. Publicacions Matemàtiques, Tome 33 (1989) pp. 123-132. http://gdmltest.u-ga.fr/item/urn:eudml:doc:41071/