表示论研讨班：Hall polynomials for affine quivers with automorphism

中科院数学与系统科学研究院

数学研究所

学术报告

表示论研讨班

报告人：邓邦明 教授（清华大学）

题  目：Hall polynomials for affine quivers with automorphism

时  间：2022.04.29（星期五），10:00-11:00

地  点：数学院南楼 N902

摘  要：In the 1990s, Ringel introduced the notion of Hall numbers for representations of quivers over finite fields and proved that in the Dynkin quiver case, Hall numbers are indeed integer polynomials of the cardinalities of ground fields. We prove that Hall polynomial exists for each triple of decomposition sequences associated with affine quivers with automorphism (or, equivalently, for all tame hereditary algebras over finite fields). This talk is based on joint work with Shiquan Ruan and Lina Han.