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Mirror theorems for root stacks and relative pairs
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Mirror theorems for root stacks and relative pairs
classification
math.AG
keywords
gromov--wittenrelativefunctionrootsmooththeoryapplicationcone
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Given a smooth projective variety $X$ with a smooth nef divisor $D$ and a positive integer $r$, we construct an $I$-function, an explicit slice of Givental's Lagrangian cone, for Gromov--Witten theory of the root stack $X_{D,r}$. As an application, we also obtain an $I$-function for relative Gromov--Witten theory following the relation between relative and orbifold Gromov--Witten invariants.
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