Campana–Corvaja–Zannier conjecture on the weak-Hilbert property

About 6 years old · traced to

Let XX be a smooth proper geometrically connected variety over a finitely generated field kk of characteristic zero. Campana–Corvaja–Zannier conjecture. The following are equivalent:

  1. There is a finite field extension L/kL/k such that XLX_L has the weak-Hilbert property over LL.
  2. There is a finite field extension M/kM/k such that X(M)X(M) is dense in XX.
  3. The smooth proper connected variety Xk‾X_{\overline{k}} is special in the sense of Campana.

This conjecture relates the weak-Hilbert property and potential density of rational points to Campana's notion of specialness. The supplied context says that the weak-Hilbert property is conjectured whenever the obvious necessary conditions hold, while the precise status is not given.

References

Primary source

Pietro Corvaja, Julian Lawrence Demeio, Ariyan Javanpeykar, Davide Lombardo and Umberto Zannier, “On the distribution of rational points on ramified covers of abelian varieties”, arXiv:2011.12840 (2022).

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.