Quot-scheme limit of Fubini-Study metrics and Donaldson's functional for vector bundles

For a holomorphic vector bundle $E$ over a polarised K\"ahler manifold, we establish a direct link between the slope stability of $E$ and the asymptotic behaviour of Donaldson's functional, by defining the Quot-scheme limit of Fubini-Study metrics. In particular, we provide an explicit est...

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Main Authors: Yoshinori Hashimoto, Julien Keller
Format: Article
Language:English
Published: Association Epiga 2022-01-01
Series:Épijournal de Géométrie Algébrique
Subjects:
Online Access:https://epiga.episciences.org/6577/pdf
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author Yoshinori Hashimoto
Julien Keller
author_facet Yoshinori Hashimoto
Julien Keller
author_sort Yoshinori Hashimoto
collection DOAJ
description For a holomorphic vector bundle $E$ over a polarised K\"ahler manifold, we establish a direct link between the slope stability of $E$ and the asymptotic behaviour of Donaldson's functional, by defining the Quot-scheme limit of Fubini-Study metrics. In particular, we provide an explicit estimate which proves that Donaldson's functional is coercive on the set of Fubini-Study metrics if $E$ is slope stable, and give a new proof of Hermitian-Einstein metrics implying slope stability.
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spelling doaj.art-cf4ace6aef72405e98b8d28fd0aeb7162022-12-22T04:07:04ZengAssociation EpigaÉpijournal de Géométrie Algébrique2491-67652022-01-01Volume 510.46298/epiga.2022.65776577Quot-scheme limit of Fubini-Study metrics and Donaldson's functional for vector bundlesYoshinori HashimotoJulien KellerFor a holomorphic vector bundle $E$ over a polarised K\"ahler manifold, we establish a direct link between the slope stability of $E$ and the asymptotic behaviour of Donaldson's functional, by defining the Quot-scheme limit of Fubini-Study metrics. In particular, we provide an explicit estimate which proves that Donaldson's functional is coercive on the set of Fubini-Study metrics if $E$ is slope stable, and give a new proof of Hermitian-Einstein metrics implying slope stability.https://epiga.episciences.org/6577/pdfmathematics - algebraic geometrymathematics - complex variablesmathematics - differential geometry14j60 (primary) 14l24, 53c07 (secondary)
spellingShingle Yoshinori Hashimoto
Julien Keller
Quot-scheme limit of Fubini-Study metrics and Donaldson's functional for vector bundles
Épijournal de Géométrie Algébrique
mathematics - algebraic geometry
mathematics - complex variables
mathematics - differential geometry
14j60 (primary) 14l24, 53c07 (secondary)
title Quot-scheme limit of Fubini-Study metrics and Donaldson's functional for vector bundles
title_full Quot-scheme limit of Fubini-Study metrics and Donaldson's functional for vector bundles
title_fullStr Quot-scheme limit of Fubini-Study metrics and Donaldson's functional for vector bundles
title_full_unstemmed Quot-scheme limit of Fubini-Study metrics and Donaldson's functional for vector bundles
title_short Quot-scheme limit of Fubini-Study metrics and Donaldson's functional for vector bundles
title_sort quot scheme limit of fubini study metrics and donaldson s functional for vector bundles
topic mathematics - algebraic geometry
mathematics - complex variables
mathematics - differential geometry
14j60 (primary) 14l24, 53c07 (secondary)
url https://epiga.episciences.org/6577/pdf
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AT julienkeller quotschemelimitoffubinistudymetricsanddonaldsonsfunctionalforvectorbundles