activity
20162022
most citedRelative quantum cohomology under birational transformations

1 citations · 1 across the 1 of their papers we have counts for

collaborators

8 papers

math.AG20221 cited

Relative quantum cohomology under birational transformations

Fenglong You

We study how relative quantum cohomology, defined by Tseng--You and Fan--Wu--You, varies under birational transformations. For toric complete intersections with simple normal cross…

math.AG2019

Higher genus relative Gromov--Witten theory and DR-cycles

Honglu Fan, Longting Wu, Fenglong You

We extend the definition of relative Gromov--Witten invariants with negative contact orders to all genera. Then we show that relative Gromov--Witten theory forms a partial CohFT. S…

math.AG2019

Relative Gromov-Witten invariants and the enumerative meaning of mirror maps for toric Calabi-Yau orbifolds

Fenglong You

We provide an enumerative meaning of the mirror maps for toric Calabi-Yau orbifolds in terms of relative Gromov-Witten invariants of the toric compactifications. As a consequence,…

math.AG2018

Mirror theorems for root stacks and relative pairs

Honglu Fan, Hsian-Hua Tseng, Fenglong You

Given a smooth projective variety with a smooth nef divisor and a positive integer , we construct an -function, an explicit slice of Givental's Lagrangian cone, for G…

math.AG2018

Structures in genus-zero relative Gromov--Witten theory

Honglu Fan, Longting Wu, Fenglong You

In this paper, we define genus-zero relative Gromov--Witten invariants with negative contact orders. Using this, we construct relative quantum cohomology rings and Givental formali…

math.AG2018

Higher genus relative and orbifold Gromov-Witten invariants

Hsian-Hua Tseng, Fenglong You

Given a smooth projective variety and a smooth divisor . We study relative Gromov-Witten invariants of and the corresponding orbifold Gromov-Witten invarian…