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SiGMA

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SinGular Monge-Ampère equations

This project is driven by M-theory, String theory in theoretical physics and the Minimal Model Problem in algebraic geometry. We study singular Kähler spaces with a focus on their special structures (of a differential geometry na... ver más

31/12/2029

SORBONNE UNIVERSIT...

1M€

Presupuesto del proyecto: 1M€

Líder del proyecto

SORBONNE UNIVERSITE No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Fecha límite participación Sin fecha límite de participación.

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Financiación concedida El organismo HORIZON EUROPE notifico la concesión del proyecto el día 2024-02-12

ERC-2023-COG: ERC CONSOLIDATOR GRANTS Scope:Objectives

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2 Participantes

SORBONNE UNIVERSITE

1.24M€ | Lider

CNRS

242.50K€ | Participante

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Duración del proyecto: 70 meses Fecha Inicio: 2024-02-12
Fecha Fin: 2029-12-31

Líder del proyecto

SORBONNE UNIVERSITE No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 1M€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto This project is driven by M-theory, String theory in theoretical physics and the Minimal Model Problem in algebraic geometry. We study singular Kähler spaces with a focus on their special structures (of a differential geometry nature) and their interaction with various areas of analysis. To be more specific, we search for special (singular) Kähler metrics with nice curvature properties, such as Kähler-Einstein (KE) or constant scalar curvature (cscK) metrics. The problem of the existence of these metrics can be reformulated in terms of a Monge-Ampère equation, which is a non-linear partial differential equation (PDE). The KE case has been settled by Aubin, Yau (solving the Calabi conjecture), and Chen-Donaldson-Sun (solving the Yau-Tian-Donaldson conjecture); the cscK case has been very recently worked out by Chen-Cheng (solving a conjecture due to Tian). However, these results only hold on smooth Kähler manifolds, and one still needs to deal with singular varieties. This is where Pluripotential Theory comes into the play. Boucksom-Eyssidieux-Guedj-Zeriahi and the author, along with Darvas and Lu, have demonstrated that pluripotential methods are very flexible and can be adapted to work with (singular) Monge-Ampère equations. Finding a solution to this type of equations that is smooth outside of the singular locus is equivalent to the existence of singular KE or cscK metrics. At this point a crucial ingredient is missing: the regularity of these (weak) solutions. The main goal of SiGMA is to address this challenge by using new techniques and ideas, which might also aid in tackling problems in complex analysis and algebraic geometry. The PI will establish a research group at her host institution focused on regularity problems of non-linear PDE’s and geometric problems in singular contexts. The goal is to create a center of research excellence in this topic.

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