摘要: 本文研究了形式三角矩阵环上的Gorenstein FI- 内射模。设
![](https://image.hanspub.org/IMAGE/Edit_d61bb010-a879-4df2-a1c4-efc1744ad6c4.png)
是形式三角矩阵环,其中A,B 是环,U 是(B,A)-双模。在一定条件下证明了若
![](https://image.hanspub.org/IMAGE/Edit_c512ca08-08c2-48d4-ba6b-3670844cfd09.png)
是Gorenstein FI-内射左T-模,则M
2是Gorenstein FI-内射左B-模,ker
φM~是Gorenstein FI- 内射左A- 模,并且
φM~是满同态。
Abstract:
Let
![](https://image.hanspub.org/IMAGE/Edit_6bddb2f5-284d-4fcc-a010-bd6999f175c7.png)
be a formal triangular matrix ring, where A and B are rings and U is (B,A)-bimodule. This article proves under certain conditions that if
![](https://image.hanspub.org/IMAGE/Edit_b96dd75c-0543-4395-86ce-7b59d9e63b43.png)
is a Gorenstein FI-injective left T-modules, then M2 is a Gorenstein FI-injective left B-modules, ker
φM~ is a Gorenstein FI-injective left A-module, and
φM~ is an epimorphism.