Inversion of adjunction for quotient singularities III: semi-invariant case
Algebraic Geometry
2026-05-01 v2
Abstract
We prove the precise inversion of adjunction formula for finite linear group quotients of complete intersection varieties defined by semi-invariant equations. As an application, we prove the semi-continuity of minimal log discrepancies for them. These results extend the results in our first paper, where we prove the same results for complete intersection varieties defined by ``invariant equations".
Keywords
Cite
@article{arxiv.2312.05808,
title = {Inversion of adjunction for quotient singularities III: semi-invariant case},
author = {Yusuke Nakamura and Kohsuke Shibata},
journal= {arXiv preprint arXiv:2312.05808},
year = {2026}
}
Comments
30 pages. To appear in J. Lond. Math. Soc