Abelian quotients of categories of short exact sequences
Abelian quotients of categories of short exact sequences
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短精确序列类别的阿贝尔商
DOI:
10.1016/j.jalgebra.2019.12.024
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发表时间:
2018-02
影响因子:
0.9
通讯作者:
Lin Zengqiang
中科院分区:
文献类型:
--
作者:
Lin Zengqiang
We mainly investigate abelian quotients of categories of short exact sequences. The natural framework to consider the question is via identifying quotients of morphism categories as module categories. These ideas not only can be used to recover the abelian quotients produced by cluster-tilting subcategories of both exact categories and triangulated categories, but also can be used to reach our goal. Let (C, E) be an exact category. We denote by E (C) the category of bounded complexes whose objects are given by short exact sequences in E and by S E (C) the full subcategory formed by split short exact sequences. In general, E (C) is just an exact category, but the quotient E (C)/[S E (C)] turns out to be abelian. In particular, if (C, E) is Frobenius, we present three equivalent abelian quotients of E (C) and point out that the equivalences are actually given by left and right rotations. The abelian quotient E (C)/[S E (C)] admits some nice properties. We explicitly describe the abelian structure, projective objects, injective objects and simple objects, which provide a new viewpoint to understanding Hilton-Rees Theorem and Auslander-Reiten theory. Furthermore, we present some analogous results for triangulated versions.
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DOI:
10.1090/conm/436/08405
发表时间:
2005-11
期刊:
arXiv: K-Theory and Homology
影响因子:
--
作者:
H. Krause
通讯作者:
H. Krause
影响因子:
0.7
作者:
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通讯作者:
R. Gentle
影响因子:
0.7
作者:
J. Asadollahi;R. Hafezi;M. Keshavarz
通讯作者:
J. Asadollahi;R. Hafezi;M. Keshavarz
DOI:
10.1016/j.jalgebra.2013.07.028
发表时间:
2013-02
期刊:
arXiv: Representation Theory
影响因子:
--
作者:
Y. Liu
通讯作者:
Y. Liu
影响因子:
0.6
作者:
H. Nakaoka
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