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Published in 2020 at "Advances in Mathematics"
DOI: 10.1016/j.aim.2020.107126
Abstract: In this paper we show that for a Koszul Calabi-Yau algebra, there is a shifted bi-symplectic structure in the sense of Crawley-Boevey-Etingof-Ginzburg, on the cobar construction of its co-unitalized Koszul dual coalgebra, and hence its…
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Keywords:
calabi yau;
yau algebras;
symplectic structure;
algebras shifted ... See more keywords
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Published in 2020 at "Journal of Pure and Applied Algebra"
DOI: 10.1016/j.jpaa.2020.106394
Abstract: Abstract Let a finite group G act on a differential graded algebra A. This article presents necessary conditions and sufficient conditions for the skew group algebra A ⁎ G to be Calabi-Yau. In particular, when…
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Keywords:
calabi yau;
products calabi;
yau;
yau algebras ... See more keywords
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Published in 2021 at "Nagoya Mathematical Journal"
DOI: 10.1017/nmj.2020.32
Abstract: This is a general study of twisted Calabi-Yau algebras that are $\mathbb{N}$-graded and locally finite-dimensional, with the following major results. We prove that a locally finite graded algebra is twisted Calabi-Yau if and only if…
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Keywords:
graded twisted;
calabi yau;
yau algebras;
twisted calabi ... See more keywords