Manin–Peyre conjecture for smooth weak Fano varieties

Let VV be a smooth weak Fano variety over a number field FF such that V(F)V(F) is Zariski dense, and let HFH_F be a relative adelic height on the anticanonical line bundle. Manin–Peyre conjecture. There exists a thin subset UV(F){\mathcal U} \subseteq V(F) and a constant cV,Fc_{V,F}, called the Peyre constant, such that

NF(U,B)cV,FB(logB)rk(PicV)1.N_F({\mathcal U},B) \sim c_{V,F}B(\log B)^{\operatorname{rk}(\operatorname{Pic}V)-1}.

Moreover, the leading constant has the form cV,F=α(V)β(V)τ(V)c_{V,F}=\alpha(V)\beta(V)\tau(V). This is the expected asymptotic for rational points on weak Fano varieties; the paper uses it as the framework for counting points on symmetric squares and Hilbert schemes. The supplied text does not state a resolution.

Sources & referencesView supporting material

Primary source

Francesca Balestrieri, Kevin Destagnol, Julian Lyczak, Jennifer Park and Nick Rome, “Counting quadratic points on Fano varieties”, arXiv:2505.17940 (2025).

Additional references

4 papers in this index state this conjecture (2018–2025). The statement above is taken from the most recent of them; the others are arXiv:2407.19408, arXiv:2106.10120, arXiv:1805.02756.

Progress summary

Never refreshed

Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.

Solutions 0

No solutions have been posted yet.