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Remarks on Hall algebras of triangulated categories

Quantum Algebra 2015-11-03 v2 Category Theory

Abstract

We introduce the notion of the Drinfeld dual of an algebra and show that Hall algebras defined by Kontsevich-Soibelman in \cite{KS} are the Drinfeld duals of derived Hall algebras defined in \cite{Toen2005} and \cite{XX2006}. Moreover, we construct the motivic analogue of a derived Hall algebra and prove that it is isomorphic to the motivic Hall algebra constructed in \cite{KS}.

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Cite

@article{arxiv.1208.2312,
  title  = {Remarks on Hall algebras of triangulated categories},
  author = {Jie Xiao and Fan Xu},
  journal= {arXiv preprint arXiv:1208.2312},
  year   = {2015}
}

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19 pages