A refinement of Gorenstein flat dimension via the flat–cotorsion theory
A refinement of Gorenstein flat dimension via the flat–cotorsion theory
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通过平面扭转理论对 Gorenstein 平面尺寸进行细化
DOI:
10.1016/j.jalgebra.2020.09.024
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发表时间:
2019-12
影响因子:
0.9
通讯作者:
Gang Yang
中科院分区:
文献类型:
--
作者:
Lars Winther Christensen;Sergio Estrada;Li Liang;Peder Thompson;Dejun Wu;Gang Yang
We introduce a refinement of the Gorenstein flat dimension for complexes over an associative ring—theGorenstein flat-cotorsion dimension—and prove that it, unlike the Gorenstein flat dimension, behaves as one expects of a homological dimension without extra assumptions on the ring. Crucially, we show that it coincides with the Gorenstein flat dimension for complexes where the latter is finite, and for complexes over right coherent rings—the setting where the Gorenstein flat dimension is known to behave as expected.
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影响因子:
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DOI:
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发表时间:
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期刊:
Rendiconti del Seminario Matematico della Università di Padova
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