3 papers
math.NT2026
Character sums over smooth numbers
Seth Hardy, Max Wenqiang Xu
Let denote the count of -smooth numbers below and denote the largest prime factor of . We show that \[ \frac{1}{φ(q)} \sum_{χ\bmod q} \Bigl| \sum_{\substa…
math.NT2025
Helson's conjecture for smooth numbers
Seth Hardy, Max Wenqiang Xu
Let denote the count of -smooth numbers below and denote the largest prime factor of . We prove that for a Steinhaus random multiplicative function, t…
math.NT2025
The distribution of partial sums of random multiplicative functions with a large prime factor
Seth Hardy
For a Steinhaus random multiplicative function, we prove convergence in distribution of the appropriately normalised partial sums \[ \frac{{(\log \log x)}^{1/4}}{\sqrt{x}} \sum…