IG-内射模和SI-代数
IG-Injective Modules and SI-Algebras

研究了$IG${-}内射模和$SI${-}代数, 证明了单$SG${-}内射模均是$IG${-}内射模, 给出了$SI${-}代数详细的分类, 刻画了每个单模都是$SG${-}内射模的代数.
The authors study $IG$-injective modules and $SI$-algebras. It is proved that simple $SG$-injective modules are all $IG$-injective modules. The detailed classification of $SI$-algebras is given and algebras such that every simple module is $SG$-injective are characterized.