4 papers
D-critical loci for local toric Calabi-Yau 3-folds
Sheldon Katz, Yun Shi
The notion of a d-critical locus is an ingredient in the definition of motivic Donaldson-Thomas invariants by [BJM19]. There is a canonical d-critical locus structure on the Hilber…
The Yamabe operator and invariants on octonionic contact manifolds and convex cocompact subgroups of
Yun Shi, Wei Wang
An octonionic contact (OC) manifold is always spherical. We construct the OC Yamabe operator on an OC manifold and prove its transformation formula under conformal OC transformatio…
The tangential -Cauchy-Fueter complexes and Hartogs' phenomenon over the right quaternionic Heisenberg group
Yun Shi, Wei Wang
We construct the tangential -Cauchy-Fueter complexes on the right quaternionic Heisenberg group, as the quaternionic counterpart of -complex on the Heisen…
Orientation data for coherent sheaves on the local projective plane
Yun Shi
In this note, we show that the canonical orientation data on the quiver hearts are compatible under the autoequivalence , and hence glue to give an orientation da…