5 citations · 7 across the 6 of their papers we have counts for
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math.RT2019
The lower extension groups and quotient categories
Xiaofa Chen, Xiao-Wu Chen
For a certain full additive subcategory X of an additive category A, one defines the lower extension groups in relative homological algebra. We show that these groups are isomorphi…
math.RT2019★ 5 cited
An informal introduction to dg categories
Xiaofa Chen, Xiao-Wu Chen
In this informal introduction to dg categories, the slogan is that dg categories are more rudimentary than triangulated categories. We recall some details on the dg quotient catego…
math.RA2019★ 1 cited
Liftable derived equivalences and objective categories
Xiaofa Chen, Xiao-Wu Chen
We give two proofs to the following theorem and its generalization: if a finite dimensional algebra is derived equivalent to a smooth projective scheme, then any derived equiva…