arXiv 0802.30162008-02math.RTmath.RA

A remark on the constructibility of real root representations of quivers using universal extension functors

Marcel Wiedemann

备注：: 8 pages, shorter than older verison

英文摘要：

In this paper we consider the following question: Is it possible to construct all real root representations of a given quiver Q by using universal extension functors, starting with a real Schur representation? We give a concrete example answering this question negatively.

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