Abstract
For a class of prime ideals P of a cancellative semigroup S it is shown that the factors S/P have a structure of a monomial semigroup over a group. Consequences for the semigroup algebras K[S] are discussed.
Acknowledgments
This work was supported in part by a KBN research grant (Poland) and by Flemish-Polish bilateral agreement BIL 01/31.
Notes
#Communicated by E. Puczylowski.