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arxiv: 1104.3528 · v2 · pith:BMIRAREOnew · submitted 2011-04-18 · 🧮 math.AG

Stasheff polytopes and the coordinate ring of the cluster X-variety of type A_n

classification 🧮 math.AG
keywords clusterpolytopesstasheffsupportstypex-varietya-varietiesbases
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We define Stasheff polytopes in the space of tropical points of cluster A-varieties. We study the supports of products of elements of canonical bases for cluster X-varieties. We prove that, for the cluster X-variety of type A_n, such supports are Stasheff polytopes.

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