Quiver Representations in the Super-Category and Gabriel's Theorem for A(m,n)

Details Quiver Representations in the Super-Category and Gabriel's Theorem for A(m,n) Quiver Representations in the Super-Category and Gabriel's Theorem for A(m,n)

2010-10-15

arxiv.org/abs/1010.3056v1

Mathematics

Representation Theory

11 pages, 5 figures

Scientific paper

Gabriel's Theorem, and the work of Bernstein, Gelfand and Ponomarev established a connection between the theory of quiver representations and the theory of simple Lie algebras. Lie superalgebras have been studied from many perspectives, and many results about Lie algebras have analogues for Lie superalgebras. In this paper, the notion of a super-representation of a quiver is introduced, as well as the notion of reflection functors for odd roots. These ideas are then used to give a categorical construction of the root system A(n,m) by establishing a version of Gabriel's Theorem and modifying the Bernstein, Gelfand, Ponomarev construction to the super-category. This is then used to give a combinatorial construction of the root system A(n,m) where roots correspond to vertices of a canonically defined quiver $\Gammahat$.

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