Results 11 to 20 of about 122,337 (231)

Generalised divisor sums of binary forms over number fields [PDF]

open access: yes, 2016
Estimating averages of Dirichlet convolutions $1 \ast \chi$, for some real Dirichlet character $\chi$ of fixed modulus, over the sparse set of values of binary forms defined over $\mathbb{Z}$ has been the focus of extensive investigations in recent years,
Frei, Christopher, Sofos, Efthymios
core   +2 more sources

A character-sum estimate and applications [PDF]

open access: yesActa Arithmetica, 1998
Let \(\chi\) be a non-principal Dirichlet character mod \(n\), and define \(S_N(H,\chi)=\sum_ ...
openaire   +2 more sources

Some estimate of character sums and its applications [PDF]

open access: yesJournal of Inequalities and Applications, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Li, Jianghua, Han, Di
openaire   +1 more source

Double Character Sums over Subgroups and Intervals [PDF]

open access: yes, 2014
We estimate double sums $$ S_\chi(a, I, G) = \sum_{x \in I} \sum_{\lambda \in G} \chi(x + a\lambda), \qquad 1\le a < p-1, $$ with a multiplicative character $\chi$ modulo $p$ where $I= \{1,\ldots, H\}$ and $G$ is a subgroup of order $T$ of the ...
Bourgain   +7 more
core   +1 more source

Estimates for Nonsingular Mixed Character Sums [PDF]

open access: yesInternational Mathematics Research Notices, 2010
a nontrivial multiplicative character of k. We extend χ to k by defining χ(0) = 0. We wish to consider character sums over An, n ≥ 1, of the following form. We are given a polynomial f (x) := f (x1, . . . , xn) in k[x1, . . . ,Xn] of degree d ≥ 1, and we are given a second polynomial g(X) := g(x1, . . . , xn) in k[x1, . . . , xn] of degree e ≥ 1.
openaire   +1 more source

The distribution of the maximum of character sums

open access: yes, 2012
We obtain explicit bounds on the moments of character sums, refining estimates of Montgomery and Vaughan. As an application we obtain results on the distribution of the maximal magnitude of character sums normalized by the square root of the modulus ...
Granville   +2 more
core   +1 more source

Character sums to smooth moduli are small

open access: yes, 2007
Recently, Granville and Soundararajan have made fundamental breakthroughs in the study of character sums. Building on their work and using estimates on short character sums developed by Graham-Ringrose and Iwaniec, we improve the Polya-Vinogradov ...
Davenport   +12 more
core   +2 more sources

One level density of low-lying zeros of families of $L$-functions [PDF]

open access: yes, 2010
In this paper, we prove some one level density results for low-lying zeros of families of $L$-functions. More specifically, the families under consideration are that of $L$-functions of holomorphic Hecke eigenforms of level 1 and weight $k$ twisted with ...
Davenport   +4 more
core   +2 more sources

One kind hybrid character sums and their upper bound estimates [PDF]

open access: yesJournal of Inequalities and Applications, 2018
The main purpose of this paper is applying the analysis method, the properties of Lucas polynomials and Gauss sums to study the estimation problems of some kind hybrid character sums. In the end, we obtain several sharp upper bound estimates for them. As some applications, we prove some new and interesting combinatorial identities.
Jianhong Zhao, Xiao Wang
openaire   +3 more sources

Counting Smooth Solutions to the Equation A+B=C [PDF]

open access: yes, 2011
This paper studies integer solutions to the Diophantine equation A+B=C in which none of A, B, C have a large prime factor. We set H(A, B,C) = max(|A|, |B|, |C|), and consider primitive solutions (gcd}(A, B, C)=1) having no prime factor p larger than (log
Lagarias, J. C., Soundararajan, K.
core   +2 more sources

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