Beauville–Voisin conjecture for hyperkähler varieties

Let TT be a hyperkähler variety. Write CH1(T)\operatorname{CH}^1(T) for the divisor classes, ci(T)c_i(T) for the Chern classes of TT, and cl\mathrm{cl} for the cycle class map. Beauville–Voisin conjecture. The cycle class map restricted to the subring generated by divisors and Chern classes,

cl ⁣:CH1(T),ci(T)H(T,Q),\mathrm{cl}\colon\left\langle\operatorname{CH}^1(T), c_i(T)\right\rangle\to H^\ast(T,\mathbb{Q}),

is injective. The conjecture extends Beauville's divisor-generation conjecture by including Chern classes; the source records cases already proved, including generalised Kummer varieties, double EPW sextics, and some other deformation types.

Sources & referencesView supporting material

Primary source

Carl Mazzanti, “On the Chow ring of double EPW quartics”, arXiv:2603.02251 (2026).

Additional references

3 papers in this index state this conjecture (2018–2026). The statement above is taken from the most recent of them; the others are arXiv:2105.06857, arXiv:1808.09845.

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