Quantum cluster characters of Hall algebras revisited
Quantum cluster characters of Hall algebras revisited
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DOI:
10.1007/s00029-022-00811-0
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发表时间:
2020-05
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影响因子:
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通讯作者:
Changjian Fu;L. Peng;Haicheng Zhang
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文献类型:
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作者:
Changjian Fu;L. Peng;Haicheng Zhang
LetQbe a finite acyclic valued quiver. We define a bialgebra structure and an integration map on the Hall algebra associated to the morphism category of projective representations ofQ. As an application, we recover the surjective homomorphism defined in , which realizes the principal coefficient quantum cluster algebraas a sub-quotient of the Hall algebra of morphisms. Moreover, we also recover the quantum Caldero–Chapoton formula, as well as some multiplication formulas between quantum Caldero–Chapoton characters.