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arxiv: 1712.01478 · v2 · pith:YUO24VWCnew · submitted 2017-12-05 · 🧮 math.SG

Weighted blowup correspondence of orbifold Gromov--Witten invariants and applications

classification 🧮 math.SG
keywords orbifoldblowupsymplecticgromov--witteninvariantsmathfrakweightedcertain
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Let $\sf X$ be a symplectic orbifold groupoid with $\sf S$ being a symplectic sub-orbifold groupoid, and $\sf X_{\mathfrak a}$ be the weight-$\mathfrak a$ blowup of $\sf X$ along $\sf S$ with $\sf Z$ being the corresponding exceptional divisor. We show that there is a weighted blowup correspondence between some certain absolute orbifold Gromov--Witten invariants of $\sf X$ relative to $\sf S$ and some certain relative orbifold Gromov--Witten invariants of the pair $(\sf X_{\mathfrak a}|Z)$. As an application, we prove that the symplectic uniruledness of symplectic orbifold groupoids is a weighted blowup invariant.

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