Abstract
In Berenstein and Rupel (2015), the authors defined algebra homomorphisms from the dual Ringel-Hall algebra of certain hereditary abelian category \(\mathcal {A}\) to an appropriate q-polynomial algebra. In the case that \(\mathcal {A}\) is the representation category of an acyclic quiver, we give an alternative proof by using the cluster multiplication formulas in (Ding and Xu, Sci. China Math. 55(10) 2045–2066, 2012). Moreover, if the underlying graph of Q associated with \(\mathcal {A}\) is bipartite and the matrix B associated to the quiver Q is of full rank, we show that the image of the algebra homomorphism is in the corresponding quantum cluster algebra.
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Chen, X., Ding, M. & Xu, F. On Homomorphisms from Ringel-Hall Algebras to Quantum Cluster Algebras. Algebr Represent Theor 19, 171–180 (2016). https://doi.org/10.1007/s10468-015-9568-1
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DOI: https://doi.org/10.1007/s10468-015-9568-1