Published January 1, 2022 | Version v1
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Singular Kähler-Einstein metrics on $ \mathbb Q $-Fano compactifications of Lie groups

  • 1. Beijing Institute of Technology
  • 2. Peking University

Description

In this paper, we prove an existence result for Kähler-Einstein metrics on $ \mathbb Q $-Fano compactifications of Lie groups by the variational method, provided their moment polytopes satisfy a fine condition. As an application, we prove that there is no $ \mathbb Q $-Fano $ {\rm SO}_4(\mathbb C) $-compactification which admits a Kähler-Einstein metric with the same volume as that of a smooth K-unstable Fano $ {\rm SO}_4(\mathbb C) $-compactification.

⚠️ This is an automatic machine translation with an accuracy of 90-95%

Translated Description (Arabic)

في هذه الورقة، نثبت وجود نتيجة لمقاييس Kähler - Einstein على $\mathbb Q $ - Fano compactifications لمجموعات LIE بالطريقة المتغيرة، بشرط أن تفي متعددات العزم بحالة دقيقة</ italic>. كتطبيق، نثبت أنه لا يوجد ضغط $\mathbb Q $- Fano ${\ rm SO }_ 4(\mathbb C )$ الذي يقبل مقياس كالر- آينشتاين بنفس حجم ضغط K - unstable Fano ${\ rm SO }_4 (\mathbb C )$.</ abstract>

Translated Description (French)

Dans cet article, nous prouvons un résultat d'existence pour les métriques de Kähler-Einstein sur les compactifications $ \mathbb Q $ -Fano des groupes de Lie par la méthode variationnelle, à condition que leurs polytopes de moment satisfassent une condition fine. En tant qu'application, nous prouvons qu'il n'y a pas de $ \mathbb Q $ -Fano $ {\rm SO}_4(\mathbb C) $ -compactification qui admette une métrique de Kähler-Einstein avec le même volume que celui d'une Fano K-instable lisse $ {\rm SO}_4(\mathbb C) $ -compactification.

Translated Description (Spanish)

En este artículo, demostramos un resultado de existencia para las métricas de Kähler-Einstein en $ \mathbb Q $-Fano compactaciones de grupos de Lie por el método variacional, siempre que sus politopos de momento satisfagan una condición fina. Como aplicación, demostramos que no hay una $ \mathbb Q $-Fano $ {\rm SO}_4(\mathbb C) $ -compactificación que admita una métrica de Kähler-Einstein con el mismo volumen que la de un Fano K-inestable suave $ {\rm SO}_4(\mathbb C) $ -compactificación.

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Additional details

Additional titles

Translated title (Arabic)
مقاييس كالر- آينشتاين الفردية على $\mathbb Q $ -ضغط فانو لمجموعات LIE
Translated title (French)
Métriques singulières de Kähler-Einstein sur $ \mathbb Q $-Fano compactifications des groupes de Lie
Translated title (Spanish)
Métricas singulares de Kähler-Einstein en $ \mathbb Q $-Fano compactaciones de grupos de Lie

Identifiers

Other
https://openalex.org/W3003443099
DOI
10.3934/mine.2023028

GreSIS Basics Section

Is Global South Knowledge
Yes
Country
China

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