Torsion classes, wide subcategories and localisations
Torsion classes, wide subcategories and localisations
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DOI:
10.1112/blms.12033
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发表时间:
2015-03
影响因子:
0.9
通讯作者:
F. Marks;J. Šťovíček
中科院分区:
文献类型:
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作者:
F. Marks;J. Šťovíček
For a finite‐dimensional algebra A , we establish correspondences between torsion classes and wide subcategories in mod(A) . In case A is representation finite, we obtain an explicit bijection between these two classes of subcategories. Moreover, we translate our results to the language of ring epimorphisms and universal localisations. It turns out that universal localisations over representation finite algebras are classified by torsion classes and support τ ‐tilting modules.