%0 Journal Article %T Units in Abelian Group Algebras Over Direct Products of Indecomposable Rings %A Danchev %A Peter %J Cubo (Temuco) %D 2012 %I Scientific Electronic Library Online %R 10.4067/S0719-06462012000100005 %X let r be a commutative unitary ring of prime characteristic p which is a direct product of indecomposable subrings and let g be a multiplicative abelian group such that g0/gp is nite. we characterize the isomorphism class of the unit group u(rg) of the group algebra rg. this strengthens recent results due to mollov-nachev (commun. algebra, 2006) and danchev (studia babes bolyai - mat., 2011). %K groups %K rings %K group rings %K indecomposable rings %K units %K direct decompositions %K isomorphisms. %U http://www.scielo.cl/scielo.php?script=sci_abstract&pid=S0719-06462012000100005&lng=en&nrm=iso&tlng=en