Results 21 to 30 of about 126,211 (116)

Exceptional Sets for Sums of Prime Cubes in Short Interval

open access: yesJournal of Mathematics, Volume 2021, Issue 1, 2021., 2021
Let E(N, X) denote the number of even integers n, with N − X ≤ n ≤ N, such that n cannot be written as n=p13+⋯+p83. We prove that if X > N1/36+ɛ, then E(N, X) = o(X).
Gongrui Chen, Jie Wu
wiley   +1 more source

On the Hybrid Power Mean of Two‐Term Exponential Sums and Cubic Gauss Sums

open access: yesJournal of Mathematics, Volume 2021, Issue 1, 2021., 2021
In this paper, an interesting third‐order linear recurrence formula is presented by using elementary and analytic methods. This formula is concerned with the calculating problem of the hybrid power mean of a certain two‐term exponential sums and the cubic Gauss sums.
Shaofan Cao   +2 more
wiley   +1 more source

ON THE WARING–GOLDBACH PROBLEM FOR CUBES [PDF]

open access: yesGlasgow Mathematical Journal, 2009
AbstractWe prove that almost all natural numbers satisfying certain necessary congruence conditions can be written as the sum of two cubes of primes and two cubes of P2-numbers, where, as usual, we call a natural number a P2-number when it is a prime or the product of two primes. From this result we also deduce that every sufficiently large integer can
Brüdern, Jörg, Kawada, Koichi
openaire   +3 more sources

On the Waring-Goldbach Problem for One Square and Five Cubes in Short Intervals [PDF]

open access: yesCzechoslovak Mathematical Journal, 2020
Let N be a sufficiently large integer. We prove that almost all sufficiently large even integers n ∈ [ N − 6 U, N + 6 U ] can be represented as $$\left\{ {\matrix{ {n = p_1^2 + p_2^3 + p_3^3 + p_4^3 + p_5^3 + p_6^3} \hfill \cr {\left| {p_1^2 - {N \over 6}
Fei Xue, Min Zhang, Jinjia Li
semanticscholar   +2 more sources

On Waring–Goldbach problem with Piatetski-Shapiro primes [PDF]

open access: yesJournal of Number Theory, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Akbal, Yıldırım, Güloğlu, Ahmet M.
openaire   +4 more sources

Waring-Goldbach Problem with Piatetski-Shapiro Primes [PDF]

open access: yes, 2016
In this paper, we exhibit an asymptotic formula for the number of representations of a large integer as a sum of a fixed power of Piatetski-Shapiro primes, thereby establishing a variant of Waring-Goldbach problem with primes from a sparse sequence.
Yildirim Akbal, A. M. Guloglu
semanticscholar   +1 more source

Short intervals asymptotic formulae for binary problems with primes and powers, I: density 3/2 [PDF]

open access: yes, 2016
We prove that suitable asymptotic formulae in short intervals hold for the problems of representing an integer as a sum of a prime and a square, or a prime square.
A., Zaccagnini, Languasco, Alessandro
core   +4 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

Relations between exceptional sets for additive problems [PDF]

open access: yes, 2010
We describe a method for bounding the set of exceptional integers not represented by a given additive form in terms of the exceptional set corresponding to a subform. Illustrating our ideas with examples stemming from Waring's problem for cubes, we show,
Kawada, Koichi, Wooley, Trevor D.
core   +3 more sources

EXPONENTIAL SUMS OVER PRIMES IN SHORT INTERVALS AND AN APPLICATION TO THE WARING–GOLDBACH PROBLEM [PDF]

open access: yesMathematika, 2014
Let $\Lambda(n)$ be the von Mangoldt function, $x$ real and $2\leq y \leq x$. This paper improves the estimate on the exponential sum over primes in short intervals \[ S_k(x,y;\alpha) = \sum_{x< n \leq x+y} \Lambda(n) e\left( n^k \alpha \right) \] when $
Bingrong Huang
semanticscholar   +1 more source

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