Hadamard convergence conjecture for smooth hypersurfaces in projective space

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Let Vd:=Γ(Pn,O(d))V_d:=\Gamma(\mathbb{P}^n,\mathcal{O}(d)) and let Ud⊂VdU_d\subset V_d be the space of smooth hypersurfaces of degree dd in Pn\mathbb{P}^n. Projective-space Hadamard convergence conjecture. In the Hadamard topology,

lim⁡d→∞ZUd/Fq(q−dim⁡Vdt)=ZGL⁡n+1/Fq(q−(n+1)2t).\lim_{d\to\infty}Z_{U_d/\mathbb{F}_q}\left(q^{-\dim V_d}t\right)=Z_{\operatorname{GL}_{n+1}/\mathbb{F}_q}\left(q^{-(n+1)^2}t\right).

In particular,

ZUd/Fq(q−dim⁡Vdt)ZGL⁡n+1/Fq(q−(n+1)2t)\frac{Z_{U_d/\mathbb{F}_q}(q^{-\dim V_d}t)}{Z_{\operatorname{GL}_{n+1}/\mathbb{F}_q}(q^{-(n+1)^2}t)}

converges uniformly on compact subsets of C\mathbb{C} to the constant function 11. This is the explicitly separated X=PnX=\mathbb{P}^n specialization of the proposed Hadamard Bertini refinement; the source gives no resolution.

References

Primary source

Margaret Bilu, Ronno Das and Sean Howe, “Zeta statistics and Hadamard functions”, arXiv:2012.14841 (2021).

Additional references

2 papers in this index state this conjecture (2019–2020). The statement above is taken from the most recent of them; the others are arXiv:1910.05207.

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