English

Symmetric and K\"ahler--Einstein Fano polygons

Algebraic Geometry 2024-10-01 v4 Combinatorics

Abstract

We investigate \emph{singular} symmetric and K\"ahler--Einstein Fano polytopes. More precisely, we show that every symmetric Fano polytope is K\"ahler--Einstein generalizing the work by Batyrev and Selivanova, and study the automorphism groups of symmetric and K\"ahler--Einstein Fano polygons in detail. In particular, every finte subgroup of GL2(Z)GL_2(\mathbb{Z}) is an automorphism group of a K\"ahler--Einstein Fano polygon.

Keywords

Cite

@article{arxiv.2012.13373,
  title  = {Symmetric and K\"ahler--Einstein Fano polygons},
  author = {DongSeon Hwang and Yeonsu Kim},
  journal= {arXiv preprint arXiv:2012.13373},
  year   = {2024}
}

Comments

Final version, to appear in Proc. Amer. Math. Soc

R2 v1 2026-06-23T21:23:36.494Z