Semi-dualizing modules and related Gorenstein homological dimensions

Semi-dualizing modules and related Gorenstein homological dimensions
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DOI:
10.1016/j.jpaa.2005.07.010
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发表时间:
2004-05
影响因子:
0.8
通讯作者:
Henrik Holm;Peter Jørgensen
Henrik Holm;Peter Jørgensen
中科院分区:
数学2区
文献类型:
--
作者:
Henrik Holm;Peter Jørgensen

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交换Noether环A上的半对偶模是一个RHomA(C,C)<$A在导范畴D(A)中的生成模C。我们展示了每个这样的模块如何产生三个新的同调维度,我们称之为C-Gorenstein投射,C-Gorenstein内射,和C-Gorenstein平坦维度,并调查这些维度的性质。
A semi-dualizing module over a commutative noetherian ring A is a finitely generated module C with RHomA(C,C)≃A in the derived category D(A). We show how each such module gives rise to three new homological dimensions which we call C-Gorenstein projective, C-Gorenstein injective, and C-Gorenstein flat dimension, and investigate the properties of these dimensions.