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On quotients of Rees algebras. (English) Zbl 1499.13014

Following [V. Barucci et al., Commun. Algebra 43, No. 1, 130–142 (2015; Zbl 1327.13087); Ark. Mat. 54, No. 2, 321–338 (2016; Zbl 1372.13017)] the authors of the paper, investigate on a family of quadratic quotients of Rees algebras over a commutative ring. Namely, given a ring \(A\), an ideal \(a\) of \(A\) and a monic polynomial \(f = T^2+aT +b \in A[T]\), the quadratic quotient \(A_f (a)\) of \(A[aT]\) with respect to \(f\) is the factor ring of \(A[aT]\) with respect to its ideal \(fA[T] \cap A[aT]\). More precisely, they answer when the ring \(A_f (a)\) is Noetherian, local, integral domain, complete and Cohen-Macaulay.

MSC:

13A15 Ideals and multiplicative ideal theory in commutative rings
13C14 Cohen-Macaulay modules
Full Text: DOI

References:

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