On tropical friezes associated with Dynkin diagrams
On tropical friezes associated with Dynkin diagrams
复制标题
与 Dynkin 图相关的热带饰带
DOI:
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复制
发表时间:
2012
期刊:
影响因子:
--
通讯作者:
Lingyan Guo
中科院分区:
文献类型:
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作者:
Lingyan Guo
Tropical friezes are the tropical analogues of Coxeter-Conway frieze patterns. In this note, we study them using triangulated categories. A tropical frieze on a 2-Calabi-Yau triangulated category $mathcal{C}$ is a function satisfying a certain addition formula. We show that when $mathcal{C}$ is the cluster category of a Dynkin quiver, the tropical friezes on ${mathcal{C}}$ are in bijection with the $n$-tuples in ${mathbb{Z}}^n$, any tropical frieze $f$ on $mathcal{C}$ is of a special form, and there exists a cluster-tilting object such that $f$ simultaneously takes non-negative values or non-positive values on all its indecomposable direct summands. Using similar techniques, we give a proof of a conjecture of Ringel for cluster-additive functions on stable translation quivers.
影响因子:
0.8
作者:
A. Fordy;Robert J. Marsh
通讯作者:
A. Fordy;Robert J. Marsh
DOI:
10.48550/arxiv.1008.5329
发表时间:
2010
期刊:
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影响因子:
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作者:
Baur K
通讯作者:
Baur K