Equivariant CM minimization for extremal manifolds

Fuente: arXiv
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Main Author: Frey, Gabriel
Format: Preprint
Published: 2025
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author Frey, Gabriel
author_facet Frey, Gabriel
contents We prove an equivariant version of the CM minimization conjecture for extremal Kähler manifolds. This involves proving that, given an equivariant punctured family of polarized varieties, a relative version of the CM degree is strictly minimized by an extremal filling. This generalizes a result by Hattori for cscK manifolds with discrete automorphism group by allowing automorphisms and extremal metrics. As a main tool, we extend results by Székelyhidi on asymptotic filtration Chow stability of cscK manifolds with discrete automorphism group to the extremal setting.
format Preprint
id arxiv_https___arxiv_org_abs_2506_10679
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Equivariant CM minimization for extremal manifolds
Frey, Gabriel
Algebraic Geometry
Differential Geometry
We prove an equivariant version of the CM minimization conjecture for extremal Kähler manifolds. This involves proving that, given an equivariant punctured family of polarized varieties, a relative version of the CM degree is strictly minimized by an extremal filling. This generalizes a result by Hattori for cscK manifolds with discrete automorphism group by allowing automorphisms and extremal metrics. As a main tool, we extend results by Székelyhidi on asymptotic filtration Chow stability of cscK manifolds with discrete automorphism group to the extremal setting.
title Equivariant CM minimization for extremal manifolds
topic Algebraic Geometry
Differential Geometry
url https://arxiv.org/abs/2506.10679