Constructing indecomposable integrally closed modules over a two-dimensional regular local ring
Constructing indecomposable integrally closed modules over a two-dimensional regular local ring
复制标题
在二维正则局部环上构造不可分解的整体封闭模
DOI:
10.1016/j.jalgebra.2020.03.029
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发表时间:
2020
影响因子:
0.9
通讯作者:
Hayasaka Futoshi
中科院分区:
文献类型:
--
作者:
Kei-ichi Watanabe;高村 茂;Toshiro Hiranouchi;Hayasaka Futoshi
In this article, we construct integrally closed modules of rank two over a two-dimensional regular local ring. The modules are explicitly constructed from a given complete monomial ideal with respect to a regular system of parameters. Then we investigate their indecomposability. As a consequence, we have a large class of indecomposable integrally closed modules whose Fitting ideal is not simple. This gives an answer to Kodiyalam's question.
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