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Gorenstein dimensions over some rings of the form R circle plus C

机译:Gorenstein在R形加上C形的某些环上的尺寸

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Given a semidualizing module C over a commutative Noetherian ring, Holm and Jorgensen [Semi-dualizing modules and related Gorenstein homological dimensions, J. Pure Appl. Algebra 205(2) (2006) 423-445] investigate some connections between C-Gorenstein dimensions of an R-complex and Gorenstein dimensions of the same complex viewed as a complex over the "trivial extension" R (sic) C. We generalize some of their results to a certain type of retract diagram. We also investigate some examples of such retract diagrams, namely D'Anna and Fontana's amalgamated duplication [An amalgamated duplication of a ring along an ideal: The basic properties, J. Algebra Appl. 6(3) (2007) 443-459] and Enescu's pseudocanonical cover [A finiteness condition on local cohomology in positive characteristic,
机译:给定可交换Noetherian环上的半对偶模块C,Holm和Jorgensen [半对偶模块和相关的Gorenstein同源尺寸,J。Pure Appl。 Algebra 205(2)(2006)423-445]研究了R-复合物的C-Gorenstein维度与同一复合物的Gorenstein维度在“平凡扩展” R(sic)C上的某些联系。他们的某些结果以某种类型的缩进图显示。我们还研究了此类缩回图的一些示例,即D'Anna和Fontana的合并复制品[沿着理想状态的圆环的合并复制品:基本属性,J。Algebra Appl。 6(3)(2007)443-459]和Enescu的伪规范覆盖[具有正特征的局部同调的有限条件,

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