scholarly journals Waring–Goldbach Problem of Even Powers in Short Intervals

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Liqun Hu ◽  
Tanhui Zhang

In this paper, we study the average behaviour of the representations of n = p 1 2 + p 2 4 + p 3 4 + p 4 k over short intervals for k ≥ 4 , where p 1 , p 2 , p 3 , p 4 are prime numbers. This improves the previous results.

2017 ◽  
Vol 15 (1) ◽  
pp. 1517-1529
Author(s):  
Zhao Feng

Abstract 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., $\begin{array}{} N=p_1^3+ \ldots +p_j^3 \end{array} $ with $\begin{array}{} |p_i-(N/j)^{1/3}|\leq N^{1/3- \delta +\varepsilon} (1\leq i\leq j), \end{array} $ for some $\begin{array}{} 0 \lt \delta\leq\frac{1}{90}. \end{array} $ Furthermore, we give the quantitative relations between the length of short intervals and the size of exceptional sets.


2013 ◽  
Vol 8 (6) ◽  
pp. 1407-1423 ◽  
Author(s):  
Hengcai Tang ◽  
Feng Zhao

2006 ◽  
Vol 79 (5-6) ◽  
pp. 848-853
Author(s):  
N. N. Mot’kina

Author(s):  
D. R. Heath-Brown

In this paper we shall investigate the occurrence of almost-primes in arithmetic progressions and in short intervals. These problems correspond to two well-known conjectures concerning prime numbers. The first conjecture is that, if (l, k) = 1, there exists a prime p satisfying


2000 ◽  
Vol 52 (4) ◽  
pp. 673-694 ◽  
Author(s):  
Antal Balog ◽  
Trevor D. Wooley

AbstractLet denote the set of integers representable as a sum of two squares. Since can be described as the unsifted elements of a sieving process of positive dimension, it is to be expected that hasmany properties in common with the set of prime numbers. In this paper we exhibit “unexpected irregularities” in the distribution of sums of two squares in short intervals, a phenomenon analogous to that discovered by Maier, over a decade ago, in the distribution of prime numbers. To be precise, we show that there are infinitely many short intervals containing considerably more elements of than expected, and infinitely many intervals containing considerably fewer than expected.


2021 ◽  
Vol 58 (1) ◽  
pp. 84-103
Author(s):  
Jinjiang Li ◽  
Min Zhang ◽  
Haonan Zhao

Let N be a sufficiently large integer. In this paper, it is proved that, with at most O(N 119/270+s) exceptions, all even positive integers up to N can be represented in the form where p1, p2, p3, p4, p5, p6 are prime numbers.


2016 ◽  
Vol 12 (05) ◽  
pp. 1391-1407 ◽  
Author(s):  
Adrian W. Dudek ◽  
Loïc Grenié ◽  
Giuseppe Molteni

In this paper, on the assumption of the Riemann hypothesis, we give explicit upper bounds on the difference between consecutive prime numbers.


2007 ◽  
Vol 128 (2) ◽  
pp. 193-200 ◽  
Author(s):  
Kaisa Matomäki

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