Tropical and non-Archimedean Monge-Ampère equations for a class of Calabi-Yau hypersurfaces

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Main Authors: Hultgren, Jakob, Jonsson, Mattias, Mazzon, Enrica, McCleerey, Nicholas
Format: Preprint
Published: 2022
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author Hultgren, Jakob
Jonsson, Mattias
Mazzon, Enrica
McCleerey, Nicholas
author_facet Hultgren, Jakob
Jonsson, Mattias
Mazzon, Enrica
McCleerey, Nicholas
contents For a class of maximally degenerate families of Calabi-Yau hypersurfaces of complex projective space, we study associated non-Archimedean and tropical Monge-Ampère equations, taking place on the associated Berkovich space, and the essential skeleton therein, respectively. For a symmetric measure on the skeleton, we prove that the tropical equation admits a unique solution, up to an additive constant. Moreover, the solution to the non-Archimedean equation can be derived from the tropical solution, and is the restriction of a continuous semipositive toric metric on projective space. Together with the work of Yang Li, this implies the weak metric SYZ conjecture on the existence of special Lagrangian fibrations in our setting.
format Preprint
id arxiv_https___arxiv_org_abs_2208_13697
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Tropical and non-Archimedean Monge-Ampère equations for a class of Calabi-Yau hypersurfaces
Hultgren, Jakob
Jonsson, Mattias
Mazzon, Enrica
McCleerey, Nicholas
Differential Geometry
Algebraic Geometry
14J32, 14J33, 32P05, 32Q25, 35J96, 53A15 (primary) 05E14, 14T90 (secondary)
For a class of maximally degenerate families of Calabi-Yau hypersurfaces of complex projective space, we study associated non-Archimedean and tropical Monge-Ampère equations, taking place on the associated Berkovich space, and the essential skeleton therein, respectively. For a symmetric measure on the skeleton, we prove that the tropical equation admits a unique solution, up to an additive constant. Moreover, the solution to the non-Archimedean equation can be derived from the tropical solution, and is the restriction of a continuous semipositive toric metric on projective space. Together with the work of Yang Li, this implies the weak metric SYZ conjecture on the existence of special Lagrangian fibrations in our setting.
title Tropical and non-Archimedean Monge-Ampère equations for a class of Calabi-Yau hypersurfaces
topic Differential Geometry
Algebraic Geometry
14J32, 14J33, 32P05, 32Q25, 35J96, 53A15 (primary) 05E14, 14T90 (secondary)
url https://arxiv.org/abs/2208.13697