A combinatorial approach to scattering diagrams
A combinatorial approach to scattering diagrams
复制标题
散射图的组合方法
DOI:
10.5802/alco.107
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Nathan Reading
中科院分区:
文献类型:
--
作者:
Nathan Reading
Scattering diagrams arose in the context of mirror symmetry, but a special class of scattering diagrams (the cluster scattering diagrams) were recently developed to prove key structural results on cluster algebras. This paper studies cluster scattering diagrams from a combinatorial point of view. We use the connection to cluster algebras to calculate the function attached to the limiting wall of a rank-2 cluster scattering diagram of affine type. In the skew-symmetric rank-2 affine case, this recovers a formula due to Reineke. In the same case, we show that the generating function for signed Narayana numbers appears in a role analogous to a cluster variable. In acyclic finite type, we construct cluster scattering diagrams of acyclic finite type from Cambrian fans and sortable elements, with a simple direct proof.
DOI:
10.48550/arxiv.1608.06568
发表时间:
2016
期刊:
arXiv e-prints
影响因子:
--
作者:
Canakci Ilke
通讯作者:
Canakci Ilke