Refined topological mirror symmetry conjecture for Hitchin moduli spaces

Let Γ=H1(C,Zn)\Gamma=H^1(C,\mathbb{Z}_n) act on the relevant Hitchin moduli space Md\mathcal{M}^d, and let Γ^\hat\Gamma be its character group. Write Eκ(Md;u,v)E_\kappa(\mathcal{M}^d;u,v) for the contribution of the κ\kappa-isotypic part of compactly supported cohomology, let B^d\hat B^d be the stated Γ\Gamma-equivariant gerbe, and let w:ΓΓ^w:\Gamma\rightarrow\hat\Gamma be the identification induced by the Weil pairing. Refined topological mirror symmetry conjecture. For κΓ^\kappa\in\hat\Gamma we have

Eκ(Md;u,v)=E(Mγe/Γ,LB^d,γ;u,v)(uv)F(γ),E_{\kappa}(\mathcal{M}^d;u,v)=E(\mathcal{M}^e_{\gamma}/\Gamma,L_{\hat B^d,\gamma};u,v)(uv)^{F(\gamma)},

where γ=w(κ)\gamma=w(\kappa). This refines the unrefined topological mirror symmetry equality by matching each character contribution with a corresponding twisted sector. The source states that it holds for n=2,3n=2,3; the general statement remains open.

Sources & referencesView supporting material

Primary source

Tamas Hausel, “Global topology of the Hitchin system”, arXiv:1102.1717 (2011).

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