Pólya–Vinogradov and the least quadratic nonresidue

JW Bober, L Goldmakher - Mathematische Annalen, 2016 - Springer
It is well-known that cancellation in short character sums (eg Burgess' estimates) yields
bounds on the least quadratic nonresidue. Scant progress has been made on short …

Improving the Burgess bound via Pólya-Vinogradov

E Fromm, L Goldmakher - Proceedings of the American Mathematical …, 2019 - ams.org
We show that even mild improvements of the Pólya-Vinogradov inequality would imply
significant improvements of Burgess' bound on character sums. Our main ingredients are a …

Large even order character sums

L Goldmakher, Y Lamzouri - Proceedings of the American Mathematical …, 2014 - ams.org
A classical theorem of Paley asserts the existence of an infinite family of quadratic
characters whose character sums become exceptionally large. In this paper, we establish an …

Short character sums and the Pólya–Vinogradov inequality

AP Mangerel - The Quarterly Journal of Mathematics, 2020 - academic.oup.com
We show in a quantitative way that any odd primitive character χ modulo q of fixed order g≥
2 satisfies the property that if the Pólya–Vinogradov inequality for χ can be improved to then …

Large odd order character sums and improvements of the Pólya-Vinogradov inequality

Y Lamzouri, A Mangerel - Transactions of the American Mathematical …, 2022 - ams.org
For a primitive Dirichlet character $\chi $ modulo $ q $, we define $ M (\chi)=\max _ {t}|\sum _
{n\leq t}\chi (n)| $. In this paper, we study this quantity for characters of a fixed odd order …

On character sums and exponential sums over generalized arithmetic progressions

X Shao - Bulletin of the London Mathematical Society, 2013 - Wiley Online Library
Let χ (mod q) be a primitive Dirichlet character. In this paper, we prove a uniform upper
bound of the character sum∑ a∈ Aχ (a) over all proper generalized arithmetic progressions …

Large odd order character sums and improvements of the P\'{o} lya-Vinogradov inequality

Y Lamzouri, AP Mangerel - arXiv preprint arXiv:1701.01042, 2017 - arxiv.org
For a primitive Dirichlet character $\chi $ modulo $ q $, we define $ M (\chi)=\max_ {t}|\sum_
{n\leq t}\chi (n)| $. In this paper, we study this quantity for characters of a fixed odd order …

[图书][B] Topics in multiplicative and probabilistic number theory

AP Mangerel - 2018 - search.proquest.com
A heuristic in analytic number theory stipulates that sets of positive integers cannot
simultaneously be additively and multiplicatively structured. The practical verification of this …

LARGE VALUES OF FOR TH ORDER CHARACTERS AND APPLICATIONS TO CHARACTER SUMS

Y Lamzouri - Mathematika, 2017 - Wiley Online Library
For any given integer we prove the existence of infinitely many and characters of order such
that. We believe this bound to be the best possible. When the order is even, we obtain …

The distribution of the maximum of cubic character sums

Y Lamzouri, K Nath - arXiv preprint arXiv:2410.22305, 2024 - arxiv.org
For a primitive Dirichlet character $\chi\pmod q $ we let\[M (\chi):=\frac {1}{\sqrt {q}}\max_
{1\leq t\leq q}\Big|\sum_ {n\leq t}\chi (n)\Big|.\] In this paper, we investigate the distribution of …