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On the Buchsbaumness of the Associated Graded Ring of a One-Dimensional Local Ring

机译:一维局部环的相关渐变环的Buchsbaum性

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摘要

Let (R, m) be a Noetherian, one-dimensional, local ring, with |R/m|=. We study when its associated graded ring G(m) is Buchsbaum; in particular, we give a theoretical characterization for G(m) to be Buchsbaum not Cohen-Macaulay. Finally, we consider the particular case of R being the semigroup ring associated to a numerical semigroup S: we introduce some invariants of S, and we use them in order to give a necessary and a sufficient condition for G(m) to be Buchsbaum.
机译:令(R,m)为Noetherian一维局部环,| R / m | =。我们研究何时其相关的分级环G(m)为Buchsbaum;特别地,我们给出G(m)为布赫斯鲍姆而非科恩-马考莱的理论表征。最后,我们考虑R的特殊情况是与数字半群S相关的半群环:我们引入S的一些不变量,并使用它们以给出G(m)为Buchsbaum的必要和充分条件。

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