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arxiv: 0812.1475 · v1 · submitted 2008-12-08 · 🧮 math.RT

The cluster complex of an hereditary artin algebra

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keywords algebraartinclustercomplexhereditaryabstractarbitraryclass
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We show that the cluster complex of an arbitrary hereditary artin algebra has the structure of an abstract simplicial polytope. In particular, the cluster-tilting objects form one equivalence class under mutation.

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