Jet-point counting conjecture for varieties over finite fields

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Let \bfZ\bfZ be a variety over \Fℓ\F_\ell, and let Jm(\bfZ)J_m(\bfZ) denote its mm-th jet scheme. Assume that there is a constant CC such that

∀m≥0,dim⁡Jm(\bfZ)≤mdim⁡(\bfZ)+C.\forall m\geq 0,\qquad \dim J_m(\bfZ)\leq m\dim(\bfZ)+C.

Jet-point counting conjecture. Then there exists a constant DD such that

∀m≥0,#Jm(\bfZ)(\Fℓ)≤DmDℓmdim⁡(\bfZ).\forall m\geq 0,\qquad \#J_m(\bfZ)(\F_\ell)\leq Dm^D\ell^{m\dim(\bfZ)}.

This relates a uniform dimension bound for the jet schemes to a polynomially controlled finite-field point count. The source gives no resolution status beyond stating the claim.

References

Primary source

Avraham Aizenbud, Dmitry Gourevitch, David Kazhdan and Eitan Sayag, “The jet schemes of the nilpotent cone of gl_n over F_and analytic properties of the Chevalley map”, arXiv:2602.16384 (2026).

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