17 citations · 45 across the 13 of their papers we have counts for
8 papers · 1 filter
Simple obstructions and cone reduction
F. Qu
Let be a Deligne-Mumford stack locally of finite type over an algebraically closed field of characteristic zero. We show that the intrinsic normal cone of is supp…
Gopakumar-Vafa invariants of fiber classes on Calabi-Yau 4-folds fibered over curves
Yalong Cao, Feng Qu
We prove a conjectural correspondence of Cao-Maulik-Toda which relates Gopakumar-Vafa invariants of fiber classes on a smooth projective Calabi-Yau 4-fold fibered over a curve to t…
Virtual classes of -gerbes
F. Qu
We show that a perfect obstruction theory for a -gerbe determines a semi-perfect obstruction theory for its base, which is perfect if the gerbe is quasi-compac…
A product formula for log Gromov-Witten invariants
Y. -P. Lee, F. Qu
The purpose of this short article is to prove a product formula relating the log Gromov-Witten invariants of with those of and in the case the log structure on…
Virtual pullbacks in -theory
F. Qu
We consider virtual pullbacks in -theory, and show that they are bivariant classes and satisfy certain functoriality. As applications to -theoretic counting invariants, we in…
A remark on virtual pushforward properties in Gromov-Witten theory
F. Qu
We approach Gathmann's virtual pushforward property from the perspective of bivariant intersection theory, extend a virtual pushforward result of Manolache, and use our extension t…