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Local rings with quasi-decomposable maximal ideal
Mathematical Proceedings of the Cambridge Philosophical Society ( IF 0.6 ) Pub Date : 2018-09-26 , DOI: 10.1017/s0305004118000695 SAEED NASSEH , RYO TAKAHASHI
Mathematical Proceedings of the Cambridge Philosophical Society ( IF 0.6 ) Pub Date : 2018-09-26 , DOI: 10.1017/s0305004118000695 SAEED NASSEH , RYO TAKAHASHI
Let (R , 𝔪) be a commutative noetherian local ring. In this paper, we prove that if 𝔪 is decomposable, then for any finitely generated R -module M of infinite projective dimension 𝔪 is a direct summand of (a direct sum of) syzygies of M . Applying this result to the case where 𝔪 is quasi-decomposable, we obtain several classifications of subcategories, including a complete classification of the thick subcategories of the singularity category of R .
中文翻译:
具有准可分解极大理想的局部环
让 (R , 𝔪) 是一个可交换的诺特局部环。在本文中,我们证明如果𝔪是可分解的,那么对于任何有限生成R -模块米 无限射影维度𝔪是米 . 将此结果应用于 𝔪 是准可分解的情况,我们获得了几个子类别的分类,包括奇点类别的厚子类别的完整分类R .
更新日期:2018-09-26
中文翻译:
具有准可分解极大理想的局部环
让 (