Specialization of modules over a local ring

dc.creatorVan Nhi, Dam
dc.creatorTrung, Ngo Viet
dc.date2002-10-11
dc.date.accessioned2026-07-07T04:51:51Z
dc.date.available2026-07-07T04:51:51Z
dc.descriptionThis paper is a continuation of an earlier paper of the authors on the probem of specializations of modules. The aim here is to define specialisations of finitely generated modules over local rings of the form k(u)[X]_P, where u is a family of indeterminates over a field k. The definition depends on the associated primes of the specialisation of the prime ideal P by the substitution of u to elements of k. As in the non-local case, the introduced specializations preserve basic properties and operations on modules.In particular, annihilators of local cohomology modules commute with specializations. As a consequence, Cohen-Macaulayness and Buchsbaumness are preserved by almost al substitutions. The paper also studies the non-Cohen-Macaulay locus and the singular locus of specializations of factor rings of k(u)[X]_P.
dc.description13 pages
dc.identifierhttps://arxiv.org/abs/math/0210177
dc.identifierhttp://arxiv.org/abs/math/0210177
dc.identifierJ. Pure Appl. Algebra 152 (2000), no. 1-3, 275--288
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/65260
dc.subjectCommutative Algebra
dc.subjectAlgebraic Geometry
dc.subject13C13; 14M05
dc.titleSpecialization of modules over a local ring
dc.typetext

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