An overview of horospherical varieties and coloured fans
Algebraic Geometry
2026-03-04 v3 Combinatorics
Abstract
We provide an overview of the combinatorial theory of horospherical varieties using coloured fans, a generalization of the combinatorial theory of toric varieties using polyhedral fans.
Cite
@article{arxiv.2305.13558,
title = {An overview of horospherical varieties and coloured fans},
author = {Sean Monahan},
journal= {arXiv preprint arXiv:2305.13558},
year = {2026}
}
Comments
46 pages. Current V3 changed some content and fixed some errors, particularly in Sections 1.2, 6.3 (new), 6.4, and 7.2