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Degeneration of Calabi-Yau metrics and canonical basis

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arxiv 2505.11087 v1 pith:4IMDQWOB submitted 2025-05-16 math.DG math.AG

classification math.DGmath.AG
keywords calabi-yaubasiscanonicallimitmetricsagreesalgebro-geometricanalytification
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abstract

For polarised degenerations of Calabi-Yau manifolds whose essential skeleton has dimension $1\leq m\leq n$, we show that the $C^0$ potential theoretic limit of the Calabi-Yau metrics agrees with the non-archimedean Calabi-Yau metric on the Berkovich analytification. Moreover, this limit data can be encoded into the unique minimiser of the Kontorovich functional of an optimal transport problem, under some algebro-geometric assumptions on the existence of a canonical basis of sections for tensor powers of the polarisation line bundle.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Generic regularity of intermediate complex structure limits

    math.DG 2025-11 conditional novelty 7.0 of 10

    For intermediate complex structure limits of Calabi-Yau degenerations, the collapsing Ricci-flat metrics converge in C^0 (and in stretched coordinates C^∞) to the non-archimedean ansatz metric on the generic region.

  2. What to do with a Ricci-flat Calabi--Yau metric?

    hep-th 2026-05 unverdicted novelty 3.0 of 10

    Numerical Ricci-flat Calabi–Yau metrics turn string compactifications from topological existence statements into computable geometries, unlocking normalized couplings, spectra, and metric-level tests of mirror symmetry.

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