Results 1 to 10 of about 24,999 (231)

On Gaps Between Primitive Roots in the Hamming Metric [PDF]

open access: yes, 2012
We consider a modification of the classical number theoretic question about the gaps between consecutive primitive roots modulo a prime $p$, which by the well-known result of Burgess are known to be at most $p^{1/4+o(1)}$. Here we measure the distance in
Dietmann, Rainer   +2 more
core   +1 more source

Quantitative relations between short intervals and exceptional sets of cubic Waring-Goldbach problem

open access: yesOpen Mathematics, 2017
In this paper, we are able to prove that almost all integers n satisfying some necessary congruence conditions are the sum of j almost equal prime cubes with j = 7, 8, i.e., N=p13+…+pj3$\begin{array}{} N=p_1^3+ \ldots +p_j^3 \end{array} $ with |pi−(N ...
Feng Zhao
doaj   +1 more source

Average bounds for Kloosterman sums over primes [PDF]

open access: yesFunctiones et Approximatio Commentarii Mathematici, 2014
We prove two estimates for averages of sums of Kloosterman fractions over primes. The first of these improves previous results of Fouvry-Shparlinski and Baker.
openaire   +3 more sources

Exponential Sums Over Primes in an Arithmetic Progression [PDF]

open access: yesProceedings of the American Mathematical Society, 1985
In 1979 A. F. Lavrik obtained some estimates for exponential sums over primes in arithmetic progressions by an analytic method. In the present paper we give an estimate for the same sums, comparable with Lavrik’s estimate, by means of elementary methods like Vaughan’s identity.
A. BALOG, PERELLI, ALBERTO
openaire   +2 more sources

On Sums of Powers of Almost Equal Primes [PDF]

open access: yes, 2014
We investigate the Waring-Goldbach problem of representing a positive integer $n$ as the sum of $s$ $k$th powers of almost equal prime numbers. Define $s_k=2k(k-1)$ when $k\ge 3$, and put $s_2=6$.
Wei, Bin, Wooley, Trevor D.
core   +5 more sources

Sign changes of Kloosterman sums with almost prime moduli [PDF]

open access: yes, 2014
We prove that the Kloosterman sum $S(1,1;c)$ can change sign infinitely often as $c$ runs over squarefree moduli with at most 10 prime factors, which improves the previous results of E. Fouvry and Ph. Michel, J. Sivak-Fischler and K.
Xi, Ping
core   +1 more source

Primes in short arithmetic progressions

open access: yes, 2003
We give a large sieve type inequality for functions supported on primes. As application we prove a conjecture by Elliott, and give bounds for short character sums over primes.
Schlage-Puchta, Jan-Christoph
core   +1 more source

On certain sums over primes and the Riesz function

open access: yesМатематичні Студії
We offer some comments on series involving the M$\ddot{o}$bius function which approximate sums over primes. To accomplish this, we utilize the derivative of the Gram series by applying Riemann-Stieltjes integration.
Alexander Patkowski
doaj   +1 more source

Mean values of Dirichlet polynomials and applications to linear equations with prime variables

open access: yes, 2004
We prove a new mean-value theorem for Dirichlet polynomials with coefficients given by the von Mangoldt function. We then use our theorem to derive new estimates for certain exponential sums over primes.
Angel V. Kumchev   +2 more
core   +2 more sources

New proof and generalization of some results on translated sums over k-almost primes

open access: yesComptes Rendus. Mathématique
A sequence $\mathcal{A}$ of strictly positive integers is said to be primitive if none of its terms divides the others, Erdős conjectured that the sum $f(\mathcal{A},0)\le f(\mathbb{N}_{1},0),$ where $\mathbb{N}_{1}$ is the sequence of prime numbers and $
Laib, Ilias
doaj   +1 more source

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