Equivariant homological mirror symmetry for torus fibrations

Let XBX\to B be a Lagrangian torus fibration with a compatible action of a finite group GG, let YY be its mirror, and let W:YCW:Y\to\mathbb{C} be the resulting Landau–Ginzburg potential. Write FukGs(X)\mathcal{F}uk_G^s(X) for the derived ss-orbifolded Fukaya category, FSGs(Y,W)\mathcal{FS}_G^s(Y,W) for the derived equivariant Fukaya–Seidel category, CohG(X)\operatorname{Coh}_G(X) for the category of GG-equivariant coherent sheaves, and MFG(W)MF_G(W) for the GG-equivariant matrix factorization category.

Equivariant torus-fibration mirror-symmetry conjecture. There should be equivalences

DbFukGs(X)DbMFG(W),D^b\mathcal{F}uk_G^s(X)\cong D^bMF_G(W), DbFSGs(Y,W)DbCohG(X).D^b\mathcal{FS}_G^s(Y,W)\cong D^b\operatorname{Coh}_G(X).

The character group G^\widehat{G} acts compatibly on both sides by twisting equivariant structures.

This formulates homological mirror symmetry in the presence of a compatible finite-group action and incorporates the spin profile of the torus fibers. The source gives no resolution status.

Sources & referencesView supporting material

Primary source

Cheol-Hyun Cho and Hansol Hong, “Finite group actions on Lagrangian Floer theory”, arXiv:1307.4573 (2013).

Additional references

2 papers in this index state this conjecture (2012–2013). The statement above is taken from the most recent of them; the others are arXiv:1212.6073.

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