Published online by Cambridge University Press: 18 July 2018
For a positive integer $d$ and a nonnegative number
$\unicode[STIX]{x1D709}$, let
$N(d,\unicode[STIX]{x1D709})$ be the number of
$\unicode[STIX]{x1D6FC}\in \overline{\mathbb{Q}}$ of degree at most
$d$ and Weil height at most
$\unicode[STIX]{x1D709}$. We prove upper and lower bounds on
$N(d,\unicode[STIX]{x1D709})$. For each fixed
$\unicode[STIX]{x1D709}>0$, these imply the asymptotic formula
$\log N(d,\unicode[STIX]{x1D709})\sim \unicode[STIX]{x1D709}d^{2}$ as
$d\rightarrow \infty$, which was conjectured in a question at Mathoverflow [https://mathoverflow.net/questions/177206/].
This research was funded by the European Social Fund according to the activity Improvement of researchers qualification by implementing world-class R&D projects of Measure no. 09.3.3-LMT-K-712-01-0037.