Fourier–Mukai equivalence of conjectural stability hearts on abelian varieties

Let XX and YY be derived equivalent gg-dimensional abelian varieties, with Fourier–Mukai transform

ΦEXY:Db(X)Db(Y).\Phi_{\mathcal{E}}^{X \to Y}:D^b(X)\to D^b(Y).

Let DXD_X and DYD_Y be the divisor classes associated to the equivalence, and let XNSQ(X)\ell_X\in\operatorname{NS}_{\mathbb{Q}}(X) and YNSQ(Y)\ell_Y\in\operatorname{NS}_{\mathbb{Q}}(Y) be the induced ample classes. For k{1,2,,g1}k\in\{1,2,\ldots,g-1\} and λR>0\lambda\in\mathbb{R}_{>0}, set

Ω=DX+λeikπ/gX,Ω=DY(1/λ)eikπ/gY.\Omega=-D_X+\lambda e^{ik\pi/g}\ell_X,\qquad \Omega'=D_Y-(1/\lambda)e^{-ik\pi/g}\ell_Y.

Fourier–Mukai heart-equivalence conjecture. The Fourier–Mukai transform gives an equivalence of the conjecturally constructed stability-condition hearts:

ΦEXY[k](AΩ)=AΩ.\Phi_{\mathcal{E}}^{X\to Y}[k](\mathcal{A}_{\Omega})=\mathcal{A}_{\Omega'}.

This predicts that derived equivalences between abelian varieties preserve the recursively constructed hearts underlying their conjectural Bridgeland stability conditions, after the indicated shift and transformation of complexified ample classes. It is proposed for all abelian varieties; the relevant stability conditions are known in dimensions two and three, while the general-dimensional case remains conjectural.

Sources & referencesView supporting material

Primary source

Dulip Piyaratne, “Stability Conditions Under the Fourier-Mukai Transforms on Abelian Threefolds”, arXiv:1709.09351 (2017).

Additional references

2 papers in this index state this conjecture (2013–2017). The statement above is taken from the most recent of them; the others are arXiv:1310.2310.

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