Equivariant deformation of minimally elliptic singularities

We study certain equivariant deformation components of minimally elliptic surface singularities under finite group actions. Interesting examples include cyclic quotients of simple elliptic singularities and finite group quotients of cusp singularities, where the resulting quotients remain simple elliptic and cusp singularities, respectively. In cases where the minimally elliptic singularities are locally complete intersection (lci) singularities, we identify equivariant deformation components of general type surfaces containing such singularities that admit a perfect obstruction theory.

Publication Details

Journal
arXiv (Cornell University)
Published
2025-10-11
Primary Topic
Algebraic Geometry and Number Theory
Type
article
Field-Weighted Citation Impact
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article

Equivariant deformation of minimally elliptic singularities

arXiv (Cornell University)
Algebraic Geometry and Number Theory
article

Equivariant deformation of minimally elliptic singularities

article en

Abstract

We study certain equivariant deformation components of minimally elliptic surface singularities under finite group actions. Interesting examples include cyclic quotients of simple elliptic singularities and finite group quotients of cusp singularities, where the resulting quotients remain simple elliptic and cusp singularities, respectively. In cases where the minimally elliptic singularities are locally complete intersection (lci) singularities, we identify equivariant deformation components of general type surfaces containing such singularities that admit a perfect obstruction theory.

arXiv (Cornell University)
Openalex Percentile: Top 37%
Algebraic Geometry and Number Theory
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Equivariant deformation of minimally elliptic singularities · arXiv (Cornell University) (2025) | TGRS Research Map | TGRS