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Related papers: Multiplicative functions in short intervals II

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In this work we show that based on a conjecture for the pair correlation of integers representable as sums of two squares, which was first suggested by Connors and Keating and reformulated here, the second moment of the distribution of the…

Number Theory · Mathematics 2013-06-20 Yotam Smilansky

In this paper we prove the mean values of some multiplicative functions connected with the divisor function on the short interval of summation.

Number Theory · Mathematics 2016-11-04 A. A. Sedunova

Let $\triangle$ denote the integers represented by the quadratic form $x^2+xy+y^2$ and $\square_{2}$ denote the numbers represented as a sum of two squares. For a non-zero integer $a$, let $S(\triangle,\square_{2},a)$ be the set of integers…

Number Theory · Mathematics 2026-05-19 Siddharth Iyer

We improve some results about the asymptotic formulae in short intervals for the average number of representations of integers of the forms $n=p_{1}^{\ell_1}+p_{2}^{\ell_2}$ and $n=p^{\ell_1} + m^{\ell_2}$, where $\ell_1, \ell_2\ge 2$ are…

Number Theory · Mathematics 2020-12-08 Alessandro Languasco , Alessandro Zaccagnini

In this paper, we shall establish a rather general asymptotic formula in short intervals for a classe of arithmetic functions and announce two applications about the distribution of divisors of square-full numbers and integers representable…

Number Theory · Mathematics 2018-07-25 Jie Wu , Qiang Wu

Let $k\ge 1$ be an integer. We prove that a suitable asymptotic formula for the average number of representations of integers $n=p_{1}^{k}+p_{2}^{2}+p_{3}^{2}$, where $p_1,p_2,p_3$ are prime numbers, holds in intervals shorter than the ones…

Number Theory · Mathematics 2021-06-04 Alessandro Languasco , Alessandro Zaccagnini

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…

Number Theory · Mathematics 2016-05-31 Bingrong Huang

We prove a structure theorem for multiplicative functions which states that an arbitrary bounded multiplicative function can be decomposed into two terms, one that is approximately periodic and another that has small Gowers uniformity norm…

Number Theory · Mathematics 2016-01-27 Nikos Frantzikinakis , Bernard Host

We examine the conditions under which the sum of random multiplicative functions in short intervals, given by $\sum_{x<n \leqslant x+y} f(n)$, exhibits the phenomenon of \textit{better than square-root cancellation}. We establish that the…

Number Theory · Mathematics 2024-02-12 Rachid Caich

The author sharpens a result of Jia (1996), showing that the interval $[n, n+n^{\frac{1}{21.5}+\varepsilon}]$ contains prime numbers for almost all $n$. Watt's mean value bound, a delicate sieve decomposition and more accurate estimates for…

Number Theory · Mathematics 2025-09-26 Runbo Li

We use the Burgess bound and Selberg sieve to obtain an upper bound on the second moment of sums over an interval $[u+1,u+h]$ of Legendre symbols modulo primes $p$ in a dyadic interval $[Q,2Q]$. The bound is nontrivial and gives a power…

Number Theory · Mathematics 2026-04-28 Igor Shparlinski , Yixiu Xiao

We consider the variance of sums of arithmetic functions over random short intervals in the function field setting. Based on the analogy between factorizations of random elements of $\mathbb{F}_q[T]$ into primes and the factorizations of…

Number Theory · Mathematics 2018-08-08 Brad Rodgers

Let $R_{m, \mathrm{sq-full}}(N)$ be a representation function for the sum of a prime and a square-full number. In this article, we prove an asymptotic formula for the sum of $R_{m, \mathrm{sq-full}}(N)$ over positive integers $N$ in a short…

Number Theory · Mathematics 2024-05-08 Fumi Ogihara , Yuta Suzuki

We improve the universality theorem of the Riemann zeta-function in short intervals by establishing universality for significantly shorter intervals $[T,T+H]$. Assuming the Riemann Hypothesis, we prove that universality in such short…

Number Theory · Mathematics 2025-02-24 Yoonbok Lee , Łukasz Pańkowski

Assuming the Riemann Hypothesis we prove that the interval $[N, N + H]$ contains an integer which is a sum of a prime and two squares of primes provided that $H \ge C (\log N)^{4}$, where $C > 0$ is an effective constant.

Number Theory · Mathematics 2016-06-07 Alessandro Languasco , Alessandro Zaccagnini

We prove a totally explicit bound for short sums of certain non-negative arithmetic functions satisfying a general growth condition, and apply this result to derive two explicit estimates for the Erd\H{o}s-Hooley $\Delta$-function in short…

Number Theory · Mathematics 2025-01-07 Olivier Bordellès

We introduce a simple sieve-theoretic approach to studying partial sums of multiplicative functions which are close to their mean value. This enables us to obtain various new results as well as strengthen existing results with new proofs.…

Number Theory · Mathematics 2021-10-29 Oleksiy Klurman , Alexander P. Mangerel , Cosmin Pohoata , Joni Teräväinen

We provide new upper bounds for sums of certain arithmetic functions in many variables at polynomial arguments and, exploiting recent progress on the mean-value of the Erd\H os-Hooley $\Delta$-function, we derive lower bounds for the…

Number Theory · Mathematics 2026-01-14 Régis de la Bretèche , Gérald Tenenbaum

We investigate the construction of $\pm1$-valued completely multiplicative functions that take the value $+1$ at at most $k$ consecutive integers, which we call length-$k$ functions. We introduce a way to extend the length based on the idea…

Number Theory · Mathematics 2024-04-09 Yichen You

We establish that, for almost all natural numbers $N$, there is a sum of two positive integral cubes lying in the interval $[N-N^{7/18+\epsilon},N]$. Here, the exponent $7/18$ lies half way between the trivial exponent $4/9$ stemming from…

Number Theory · Mathematics 2024-05-30 Joerg Bruedern , Trevor D. Wooley