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arXiv 1909.02332math.CO
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带系数的中楣图案

Frieze patterns with coefficients

Michael Cuntz, Thorsten Holm, Peter Jorgensen

摘要:

Frieze模式,由Coxeter在20世纪70年代引入,与没有系数的簇代数密切相关。一个适当的推广frieze模式,链接到集群代数的系数,只简要地出现在一个未发表的手稿Propp。本文系统地研究了这些带系数的中楣图案,证明了一些基本结果,推广了中楣图案的经典结果。因此,我们看到如何frieze模式的系数,可以从经典的frieze模式,通过削减子多边形从三角形相关的经典康威-考克斯特frieze模式。我们解决的问题,其中frieze模式的系数可以通过这种方式获得,并完全解决这个问题的三角形。最后,我们证明了有限性结果的frieze模式的系数表明,对于一个给定的边界序列,只有200多个(非零)frieze模式的系数与条目的离散子集的复数。

英文摘要:

Frieze patterns, as introduced by Coxeter in the 1970's, are closely related to cluster algebras without coefficients. A suitable generalization of frieze patterns, linked to cluster algebras with coefficients, has only briefly appeared in an unpublished manuscript by Propp. In this paper we study these frieze patterns with coefficients systematically and prove various fundamental results, generalizing classic results for frieze patterns. As a consequence we see how frieze patterns with coefficients can be obtained from classic frieze patterns by cutting out subpolygons from the triangulated polygons associated to classic Conway-Coxeter frieze patterns. We address the question of which frieze patterns with coefficients can be obtained in this way and solve this problem completely for triangles. Finally, we prove a finiteness result for frieze patterns with coefficients by showing that for a given boundary sequence there are only finitely many (non-zero) frieze patterns with coefficients with entries in a discrete subset of the complex numbers.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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