English

Inversion of adjunction for quotient singularities II: Non-linear actions

Algebraic Geometry 2024-08-19 v3

Abstract

We prove the precise inversion of adjunction formula for quotient singularities. As an application, we prove the semi-continuity of minimal log discrepancies for hyperquotient singularities. This paper is a continuation of arXiv:2011.07300, and we generalize the previous results to non-linear group actions.

Keywords

Cite

@article{arxiv.2112.09502,
  title  = {Inversion of adjunction for quotient singularities II: Non-linear actions},
  author = {Yusuke Nakamura and Kohsuke Shibata},
  journal= {arXiv preprint arXiv:2112.09502},
  year   = {2024}
}

Comments

54 pages. To appear in Algebraic Geometry