Abstract
We construct non-archimedean SYZ (Strominger-Yau-Zaslow) fibrations for maximally degenerate Calabi-Yau varieties, and we show that they are affinoid torus fibrations away from a codimension-two subset of the base. This confirms a prediction by Kontsevich and Soibelman. We also give an explicit description of the induced integral affine structure on the base of the SYZ fibration. Our main technical tool is a study of the structure of minimal dlt (divisorially log terminal) models along one-dimensional strata.
Original language | English (US) |
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Pages (from-to) | 953-972 |
Number of pages | 20 |
Journal | Compositio Mathematica |
Volume | 155 |
Issue number | 5 |
DOIs | |
State | Published - Jan 1 2019 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Algebra and Number Theory
Keywords
- Strominger-Yau-Zaslow conjecture
- minimal model program
- mirror symmetry
- non-archimedean geometry