Decomposing Birational Morphisms Between Smooth Threefolds: The Picard Number Two Case
A question proposed by Kollár asks whether a projective birational morphism between smooth projective $3$-folds can be decomposed into a sequence of smooth blow-downs and flops. We give an affirmative answer to this question when the relative Picard number is $2$.
Authors
- Chen Jiang (ORCID: https://orcid.org/0000-0003-0562-6240)
Institutions
- Fudan University (CN)
Publication Details
- Journal
- Taiwanese Journal of Mathematics
- Published
- 2025-04-06
- DOI
- https://doi.org/10.11650/tjm/250401
- Primary Topic
- Algebraic Geometry and Number Theory
- Type
- article
- Field-Weighted Citation Impact
- 0.00