Voisin map conjecture for homologically trivial zero-cycles

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Let YY be the variety in the preceding construction and let X=Fr(Y)X=F_r(Y), with r≥2r\geq 2, where Ψ:X⇢X\Psi:X\dashrightarrow X is the Voisin rational map. For z∈CH0(X)homz\in CH_0(X)_{hom}, the subgroup of homologically trivial zero-cycles on XX, Voisin map conjecture.

Ψ∗z=(−2)r+1z.\Psi_*z=(-2)^{r+1}z.

This conjecture is presented as a consequence of the conjectural structure of zero-cycles on the varieties Fr(Y)F_r(Y); the analogous eigenvalue formula for the holomorphic top form and the degree of Ψ\Psi are established in the paper. Its status is not determined by the supplied text.

References

Primary source

Chenyu Bai, “Hodge theory, algebraic cycles of hyper-Kähler manifolds”, arXiv:2407.19488 (2024).

Additional references

2 papers in this index state this conjecture (2024). The statement above is taken from the most recent of them; the others are arXiv:2404.10138.

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