English

On exceptional quotient singularities

Algebraic Geometry 2016-01-20 v8 Differential Geometry

Abstract

We study exceptional quotient singularities. In particular, we prove an exceptionality criterion in terms of the α\alpha-invariant of Tian, and utilize it to classify four-dimensional and five-dimensional exceptional quotient singularities.

Keywords

Cite

@article{arxiv.0909.0918,
  title  = {On exceptional quotient singularities},
  author = {Ivan Cheltsov and Constantin Shramov},
  journal= {arXiv preprint arXiv:0909.0918},
  year   = {2016}
}

Comments

30 pages, improved exposition, shifted numeration

R2 v1 2026-06-21T13:42:47.870Z