Batyrev–Manin–Peyre counting conjecture for strongly saturated varieties

Let FF be a number field, and let VV be a smooth projective variety over FF that is strongly L\mathcal{L}-saturated for a metrized line bundle L\mathcal{L}. Let HL,FH_{\mathcal{L},F} be the associated height, and define

N(V,L,B)=#{xV(F):HL,F(x)B}.N(V,\mathcal{L},B)=\#\{x\in V(F):H_{\mathcal{L},F}(x)\leq B\}.

Write αV(L)\alpha_V(\mathcal{L}), βV(L)\beta_V(\mathcal{L}), and cV(L)c_V(\mathcal{L}) for the associated Batyrev–Manin–Peyre invariants and leading constant. Batyrev–Manin–Peyre conjecture. One has

N(V,L,B)=cV(L)BαV(L)(logB)βV(L)1(1+o(1)),N(V,\mathcal{L},B)=c_V(\mathcal{L})B^{\alpha_V(\mathcal{L})}(\log B)^{\beta_V(\mathcal{L})-1}(1+o(1)),

as BB\to\infty. This is the expected asymptotic for rational points of bounded height on suitable varieties; the cited formulation is attributed to Batyrev and Tschinkel.

Sources & referencesView supporting material

Primary source

Ho Chung Siu, “On the number of quadratic polynomials with a given portrait”, arXiv:2409.18074 (2024).

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