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Mathematics > Combinatorics

Title: Denseness of $g$-vector cones from weighted orbifolds

Abstract: We study $g$-vector cones in a cluster algebra defined from a weighted orbifold of rank $n$ introduced by Felikson, Shapiro and Tumarkin. We determine the closure of the union of the $g$-vector cones. It is equal to $\mathbb{R}^n$ except for a weighted orbifold with empty boundary and exactly one puncture, in which case it is equal to the half space of a certain explicit hyperplane in $\mathbb{R}^n$.
Comments: 21 pages. this article draws heavily from arXiv:1904.12479, v2: minor corrections
Subjects: Combinatorics (math.CO); Geometric Topology (math.GT); Rings and Algebras (math.RA); Representation Theory (math.RT)
MSC classes: 13F60, 16G20
Cite as: arXiv:2307.02282 [math.CO]
  (or arXiv:2307.02282v3 [math.CO] for this version)

Submission history

From: Toshiya Yurikusa [view email]
[v1] Wed, 5 Jul 2023 13:37:59 GMT (29kb)
[v2] Thu, 6 Jul 2023 04:32:43 GMT (29kb)
[v3] Fri, 26 Apr 2024 06:57:05 GMT (29kb)

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