Gromov-Hausdorff limits of collapsing Calabi-Yau fibrations

Fuente: arXiv
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Autore principale: Székelyhidi, Gábor
Natura: Preprint
Pubblicazione: 2025
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author Székelyhidi, Gábor
author_facet Székelyhidi, Gábor
contents We study Calabi-Yau metrics on a projective manifold in Kähler classes converging to a semiample class given by a fibration. We show that the Gromov-Hausdorff limit of the metrics is homeomorphic to the base of the fibration and in addition the discriminant locus has Hausdorff codimension at least 2. This resolves conjectures of Tosatti.
format Preprint
id arxiv_https___arxiv_org_abs_2505_14939
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Gromov-Hausdorff limits of collapsing Calabi-Yau fibrations
Székelyhidi, Gábor
Differential Geometry
32Q25, 53C25
We study Calabi-Yau metrics on a projective manifold in Kähler classes converging to a semiample class given by a fibration. We show that the Gromov-Hausdorff limit of the metrics is homeomorphic to the base of the fibration and in addition the discriminant locus has Hausdorff codimension at least 2. This resolves conjectures of Tosatti.
title Gromov-Hausdorff limits of collapsing Calabi-Yau fibrations
topic Differential Geometry
32Q25, 53C25
url https://arxiv.org/abs/2505.14939