Research
Research
Publications:
Density of the union of positive diagonal binary quadratic forms
Acta Arith. 207 (2023), no. 1, 1–17. arXiv:2103.08268
Abstract: Let X be a sufficiently large positive integer. We prove that one may choose a subset S of primes with cardinality O(logX), such that a positive proportion of integers less than X can be represented by x^2+py^2 for at least one of p in S.
Preprints:
Class numbers and integer points on some Pellian surfaces
Preprint: arXiv:2408.03774
Abstract: We provide an estimate for the number of nontrivial integer points on the Pellian surface t^2−d^u2=1 in a bounded region. We give a lower bound on the size of fundamental solutions for almost all d in a certain class, based on a recent conjecture of Browning and Wilsch about integer points on log K3 surfaces. We also obtain an upper bound on the average of class number in this class, assuming the same conjecture.
Liouville function, von Mangoldt function and norm forms at random binary forms
Preprint: arXiv:2506.18065
Abstract: We analyze the average behavior of various arithmetic functions at the values of degree d binary forms ordered by height, with probability 1. This approach yields averaged versions of the Chowla conjecture and the Bateman-Horn conjecture for random binary forms. Furthermore, we show that the rational Hasse principle holds for almost all Châtelet varieties defined by a fixed norm form of degree e and by varying binary forms of fixed degree d, provided e divides d. This proves an average version of a conjecture of Colliot-Thélène.