English

Denseness of $g$-vector cones from weighted orbifolds

Combinatorics 2025-12-30 v3 Geometric Topology Rings and Algebras Representation Theory

Abstract

We study gg-vector cones in a cluster algebra defined from a weighted orbifold of rank nn introduced by Felikson, Shapiro and Tumarkin. We determine the closure of the union of the gg-vector cones. It is equal to Rn\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 Rn\mathbb{R}^n.

Keywords

Cite

@article{arxiv.2307.02282,
  title  = {Denseness of $g$-vector cones from weighted orbifolds},
  author = {Toshiya Yurikusa},
  journal= {arXiv preprint arXiv:2307.02282},
  year   = {2025}
}

Comments

21 pages. this article draws heavily from arXiv:1904.12479, v2: minor corrections