Joyce's special Lagrangian invariant conjecture for Calabi–Yau 3-folds

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Let (M,J,ω,Ω)(M,J,\omega,\Omega) be an (almost) Calabi–Yau 33-fold with compact underlying 66-manifold MM, complex structure JJ, Kähler form ω\omega, and holomorphic volume form Ω\Omega. Let Db(F(M,ω))D^b(F(M,\omega)) denote the derived Fukaya category, and let τ\tau be the Bridgeland-type stability condition determined by Ω\Omega. Joyce's special Lagrangian invariant conjecture. There should exist invariants Kα(J)∈QK^\alpha(J)\in\mathbb Q for α∈H3(M,Z)\alpha\in H_3(M,\mathbb Z) counting special Lagrangian homology 33-spheres N⊂MN\subset M with [N]=α[N]=\alpha, as well as possibly other immersed or singular special Lagrangian 33-folds. They should be independent of ω\omega and of complex rescalings of Ω\Omega, transform according to the triangulated-category extension of the stated wall-crossing formula under deformation of JJ, and agree under mirror symmetry with the corresponding invariants of τ~\tilde\tau-semistable objects in Db(coh⁡(P))D^b(\operatorname{coh}(P)) for a mirror Calabi–Yau 33-fold PP. The source further proposes analogous systems counting configurations and a possible extension to (almost) Calabi–Yau mm-folds for m≥2m\geq 2. This is presented as an extension of the extended Donaldson–Thomas conjecture and is not resolved in the source.

References

Primary source

Dominic Joyce, “Configurations in abelian categories. IV. Invariants and changing stability conditions”, arXiv:math/0410268 (2007).

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