The low-degree GW algorithm conjecture for quintic threefolds

Let Ng,dN_{g,d} be the genus gg, degree dd Gromov–Witten invariant of the quintic threefold, and let Θg,k\Theta_{g,k} be the genus gg FJRW invariant of the Fermat quintic. For d<gd<g, set

d=(d+1,gd1),γ=.\mathbf d=(d+1,g-d-1),\qquad \gamma=\emptyset.

Low-degree GW algorithm conjecture. Applying the localization vanishing to this data determines Ng,dN_{g,d} provided that

Ng,d are known for g<g, dd,N_{g',d'}\text{ are known for }g'<g,\ d'\leq d,

and

Θg,k are known for gg, k<7g2.\Theta_{g',k'}\text{ are known for }g'\leq g,\ k'<7g'-2.

This is the proposed inductive mechanism for determining the low-degree initial GW invariants needed in the effective theory.

Sources & referencesView supporting material

Primary source

Huai-Liang Chang, Jun Li, Wei-Ping Li and Chiu-Chu Melissa Liu, “An effective theory of GW and FJRW invariants of quintics Calabi-Yau manifolds”, arXiv:1603.06184 (2019).

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