Hanieh Shoar, M. Salimi, A. Tehranian, H. Rasouli, E. Tavasoli
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引用次数: 0
摘要
设R和S是具有恒等的交换环,J是S的理想,f: R→S是环同态,M是R模,N是S模,φ: M→N是R同态。M. D 'Anna et al.(2010)引入了R与S以及J相对于f的合并,用R⨝fJ表示。最近,R. El Khalfaoui等人(2021)引入了一种特殊的(R⨝fJ)模,称为M和N沿J对φ的合并,用M⨝φ jn表示。研究了(R⨝fJ)-模M⨝φJN的一些同调性质。在其他结果中,我们研究了(R⨝fJ)-模M⨝φJN的投影性、平坦性、注入性、Cohen-Macaulayness和素数性质,并与它们对应的R-模M和JN的性质联系起来。
Some homological properties of amalgamated modules along an ideal
Let R and S be commutative rings with identity, J be an ideal of S, f: R → S be a ring homomorphism, M be an R-module, N be an S-module, and let φ: M → N be an R-homomorphism. The amalgamation of R with S along J with respect to f denoted by R ⨝fJ was introduced by M. D’Anna et al. (2010). Recently, R. El Khalfaoui et al. (2021) introduced a special kind of (R ⨝fJ)-module called the amalgamation of M and N along J with respect to φ, and denoted by M ⨝φJN. We study some homological properties of the (R ⨝fJ)-module M ⨝φJN. Among other results, we investigate projectivity, flatness, injectivity, Cohen-Macaulayness, and prime property of the (R ⨝fJ)-module M ⨝φJN in connection to their corresponding properties of the R-modules M and JN.