Let τ be a torsion theory on R-rood and M be a left R-mod. In this paper the τ-cotorsionfree radical Cτ(M) of M is studied. When τ is stable, the construction and the supplementing radical of Cτ (M) are obtai...Let τ be a torsion theory on R-rood and M be a left R-mod. In this paper the τ-cotorsionfree radical Cτ(M) of M is studied. When τ is stable, the construction and the supplementing radical of Cτ (M) are obtained.展开更多
文摘Let τ be a torsion theory on R-rood and M be a left R-mod. In this paper the τ-cotorsionfree radical Cτ(M) of M is studied. When τ is stable, the construction and the supplementing radical of Cτ (M) are obtained.