几乎分裂序列相关论文
Let A be a basic hereditary artin algebra and R = A Q be the trivial extension of A by its minimal injective cogenerator......
令ΛA1,Λ2为两个环,M是(A2-Λ1)-双模,且N是(Λ1-Λ2)-双模.六元组Γ=(Λ1,Λ2,N,M,ψ,φ)是一个森田六元组.对于Γ的表示,确定其几乎分......