Cone theorem and Mori hyperbolicity
We discuss the cone theorem for quasi-log schemes and the Mori hyperbolicity. In particular, we establish that the log canonical divisor of a Mori hyperbolic projective normal pair is nef if it is nef when restricted to the non-lc locus. This answers Svaldi's question completely. We also treat the uniruledness of the degenerate locus of an extremal contraction morphism for quasi-log schemes. Furthermore, we prove that every fiber of a relative quasi-log Fano scheme is rationally chain connected modulo the non-qlc locus.
Authors
- Osamu Fujino (ORCID: https://orcid.org/0000-0002-5958-0201)
Institutions
- Kyoto University (JP)
Publication Details
- Journal
- Journal of Differential Geometry
- Published
- 2025-02-28
- DOI
- https://doi.org/10.4310/jdg/1740136781
- Citations
- 3
- Primary Topic
- Mathematics and Applications
- Type
- article
- Field-Weighted Citation Impact
- 12.26