A solution to the Yau-Tian-Donaldson Conjecture through Special Fujita Approximations

Fuente: arXiv
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Autor principal: Trusiani, Antonio
Formato: Preprint
Publicado: 2026
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author Trusiani, Antonio
author_facet Trusiani, Antonio
contents We show that any big line bundle on a smooth projective variety admits a special Fujita approximation: the volume and the first Riemann-Roch coefficient are both approximated by those of ample $\mathbb{Q}$-line bundles on higher models. Exploiting previous works by Boucksom, Jonsson and Li, we solve the Boucksom-Jonsson Regularization Conjecture on the Non-Archimedean entropy functional. As a main consequence, we obtain a solution to the (uniform version of the) Yau-Tian-Donaldson Conjecture: a polarized smooth projective variety $(X,L)$ admits a cscK metric if and only if it is $\mathrm{Aut}^\circ(X,L)$-uniformly $K$-stable. This extends the known Yau-Tian-Donaldson correspondence for smooth Fano varieties.
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publishDate 2026
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spellingShingle A solution to the Yau-Tian-Donaldson Conjecture through Special Fujita Approximations
Trusiani, Antonio
Algebraic Geometry
Complex Variables
Differential Geometry
We show that any big line bundle on a smooth projective variety admits a special Fujita approximation: the volume and the first Riemann-Roch coefficient are both approximated by those of ample $\mathbb{Q}$-line bundles on higher models. Exploiting previous works by Boucksom, Jonsson and Li, we solve the Boucksom-Jonsson Regularization Conjecture on the Non-Archimedean entropy functional. As a main consequence, we obtain a solution to the (uniform version of the) Yau-Tian-Donaldson Conjecture: a polarized smooth projective variety $(X,L)$ admits a cscK metric if and only if it is $\mathrm{Aut}^\circ(X,L)$-uniformly $K$-stable. This extends the known Yau-Tian-Donaldson correspondence for smooth Fano varieties.
title A solution to the Yau-Tian-Donaldson Conjecture through Special Fujita Approximations
topic Algebraic Geometry
Complex Variables
Differential Geometry
url https://arxiv.org/abs/2605.30063