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math.RT2026
Singular Hochschild complex and Cartan matrix
Yu Wang, Xiaozhuan Liang
If A is a symmetric algebra, then Hochschild homology of the dg enhancement of the singularity category of A agrees with singular Hochschild homology of A. For a basic finite dimen…
math.RT2021★ 1 cited
An introduction to relative Calabi-Yau structures
Bernhard Keller, Yu Wang
These are notes taken by the second author for a series of three lectures by the first author on absolute and relative Calabi-Yau completions and Calabi-Yau structures given at the…
math.RT2021★ 3 cited
The dg Leavitt algebra, singular Yoneda category and singularity category
Xiao-Wu Chen, Bernhard Keller, Yu Wang +1
For any finite dimensional algebra given by a quiver with relations, we prove that its dg singularity category is quasi-equivalent to the perfect dg derived category of a dg Le…