τ-Categories II: Nakayama Pairs and Rejective Subcategories

τ-Categories II: Nakayama Pairs and Rejective Subcategories
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DOI:
10.1007/s10468-005-0969-4
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发表时间:
2005-10
影响因子:
0.6
通讯作者:
O. Iyama
O. Iyama
中科院分区:
数学4区
文献类型:
--
作者:
O. Iyama

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我们研究了τ-范畴中的中山对,它是由某种Auslander-Reiten序列图所连接的对象对。使用它们,我们自然地引入了有序τ-类别。然后我们研究了τ-范畴的拒绝子范畴。一类格的范畴给出了一类有序τ-范畴的一个典型例子。在这种情况下,它的拒绝子类别客观地对应于它的上环。
We studyNakayama pairsin τ-categories, which are pairs of objects connected by a certain diagram of Auslander–Reiten sequences. Using them, we naturally introduceorderlikeτ-categories. Then we studyrejective subcategoriesof τ-categories. A typical example of orderlike τ-categories is given by the category of lattices over an order. In this case, its rejective subcategories correspond bijectively to its overrings.