Noncommutative Hourglasses II 1/2: Derived Category of Birational Linkage with Well-Formed Singularities
Year: 2026
Type: preprint
Abstract: We consider varieties whose singularities are complete intersections within toric singularities, which we call well-formed varieties. Using the construction of equivariant standard resolutions, we can extend several classical formulas in the derived category of bounded coherent sheaves to this singular setting. Finally, we also discuss the Bondal--Orlov localization for certain morphisms between terminal complex threefolds and their stacks.
Source: arXiv (Cornell University)
Author: Hao, Xingbang
Language: English
Subfield: Geometry and Topology
Field: Mathematics
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7204873889