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math.RA2019★ 2 cited
A refinement of Gorenstein flat dimension via the flat--cotorsion theory
Lars Winther Christensen, Sergio Estrada, Li Liang +3
We introduce a refinement of the Gorenstein flat dimension for complexes over an associative ring--the Gorenstein flat-cotorsion dimension--and prove that it, unlike the Gorenstein…
math.AC2019★ 1 cited
A study of Tate homology via the approximation theory with applications to the depth formula
Olgur Celikbas, Li Liang, Arash Sadeghi +1
In this paper we are concerned with absolute, relative and Tate Tor modules. In the first part of the paper we generalize a result of Avramov and Martsinkovsky by using the Ausland…