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arXiv 1301.0195math.RTmath.RA
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同伦范畴、Leavitt路代数与Gorenstein投射模

Homotopy categories, Leavitt path algebras and Gorenstein projective modules

Xiao-Wu Chen, Dong Yang

摘要:

对于一个无源无汇的有限维代数,证明了相应的根为零的有限维代数上内射模的无圈复形的同伦范畴三角等价于Leavitt路代数的导出范畴,该路代数被看作是一个具有平凡微分的微分分次代数,它进一步三角等价于von Neumann正则代数的平凡扩张代数上的Gorenstein投射模的稳定范畴。给出了投射模的无圈复形的同伦范畴的一个相关但不同的结果。限制这些等价紧对象,我们得到各种描述的奇异范畴的有限维代数根式平方零,其中包含以前的结果。

英文摘要:

For a finite quiver without sources or sinks, we prove that the homotopy category of acyclic complexes of injective modules over the corresponding finite dimensional algebra with radical square zero is triangle equivalent to the derived category of the Leavitt path algebra viewed as a differential graded algebra with trivial differential, which is further triangle equivalent to the stable category of Gorenstein projective modules over the trivial extension algebra of a von Neumann regular algebra by an invertible bimodule. A related, but different, result for the homotopy category of acyclic complexes of projective modules is given. Restricting these equivalences to compact objects, we obtain various descriptions of the singularity category of a finite dimensional algebra with radical square zero, which contain previous results.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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