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Periodic derived Hall algebras of hereditary abelian categories

2023/03/06 by Zhang, Haicheng · 1 citation
#FOS: Mathematics #Quantum Algebra (math.QA) #Representation Theory (math.RT) #Rings and Algebras (math.RA)

paper · doi:10.48550/arxiv.2303.02912

Abstract

Let m be a positive integer and Dm(\mathcal A) be the m-periodic derived category of a finitary hereditary abelian category \mathcal A. Applying the derived Hall numbers of the bounded derived category Db(\mathcal A), we define an m-periodic extended derived Hall algebra for Dm(\mathcal A), and use it to give a global, unified and explicit characterization for the algebra structure of Bridgeland's Hall algebra of periodic complexes. Moreover, we also provide an explicit characterization for the odd periodic derived Hall algebra of \mathcal A defined by Xu-Chen [22].

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