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The aim of this paper is to try to establish a generic model for the problem that several multivariable number-theoretic functions represent simultaneously primes for infinitely many integral points. More concretely, we introduced briefly…

General Mathematics · Mathematics 2009-11-23 Shaohua Zhang

We explicitly construct a diffeomorphic pair (p(x),p^{-1}(x)) in terms of an appropriate quadric spline interpolating the prime series. These continuously differentiable functions are the smooth analogs of the prime series and the prime…

Mathematical Physics · Physics 2007-05-23 Lubomir Alexandrov , Lachezar Georgiev

In this paper analyzes \textit{The Erd\H{o}s-Straus conjecture} asserts that $f$$(n)$ $>$ 0 for every $n$ $\geq$ 2, where $f(n)$ indicates the number of solutions to the Diophantine Equation…

General Mathematics · Mathematics 2016-09-02 Elias Rios

Let $\Omega(n)$ denote the number of prime factors of a positive integer $n$ counted with multiplicities. We show that for any bounded functions $a,b\colon\mathbb{N}\to\mathbb{C}$, $$\frac{1}{\log{N}}\sum_{n=1}^N…

Number Theory · Mathematics 2025-02-19 Dimitrios Charamaras , Florian K. Richter

The arithmetic average of the first $n$ primes, $\bar p_n = {1\over n} \sum_{i=1}^n p_i$, exhibits very many interesting and subtle properties. Since the transformation from $p_n \to \bar p_n$ is extremely easy to invert, $p_n = n\bar p_n -…

Number Theory · Mathematics 2025-07-17 Matt Visser

An integer $n$ is called practical if every $m\le n$ can be written as a sum of distinct divisors of $n$. We show that the number of practical numbers below $x$ is asymptotic to $c x/\log x$, as conjectured by Margenstern. We also give an…

Number Theory · Mathematics 2015-03-04 Andreas Weingartner

Assuming the Riemann Hypothesis we obtain asymptotic estimates for the mean value of the number of representations of an integer as a sum of two primes. By proving a corresponding Omega-term, we prove that our result is essentially the best…

Number Theory · Mathematics 2010-03-02 Gautami Bhowmik , Jan-Christoph Schlage-Puchta

The purpose of this paper is to discuss the relationship between prime numbers and sums of Fibonacci numbers. One of our main results says that for every sufficiently large integer $k$ there exists a prime number that can be represented as…

Number Theory · Mathematics 2022-08-17 Michael Drmota , Clemens Müllner , Lukas Spiegelhofer

The paper exploits an isomorphism between the natural numbers N and a space U of periodic sequences of the roots of unity in constructing a recursive procedure for representing and computing the prime numbers. The nth wave number ${\bf…

Data Structures and Algorithms · Computer Science 2022-09-27 Terence R. Smith

In this paper, we study a class of functions defined recursively on the set of natural numbers in terms of the greatest common divisor algorithm of two numbers and requiring a minimality condition. These functions are permutations, products…

Number Theory · Mathematics 2025-12-08 Amit Kumar Basistha , Eugen J. Ionascu

The aim of this article is to investigate how various Riemann Hypotheses would follow only from properties of the prime numbers. To this end, we consider two classes of $L$-functions, namely, non-principal Dirichlet and those based on cusp…

Number Theory · Mathematics 2017-11-16 Guilherme França , André LeClair

Let $x$ be a positive integer. We give an asymptotic formula for the number of primes in the set $\{\fl{x/n}, 1 \le n \le x\}$ and give some related results.

Number Theory · Mathematics 2021-12-22 Randell Heyman

We continue investigations on the average number of representations of a large positive integer as a sum of given powers of prime numbers. The average is taken over a short interval, whose admissible length depends on whether or not we…

Number Theory · Mathematics 2020-12-08 Marco Cantarini , Alessandro Gambini , Alessandro Zaccagnini

To determine whether a number is congruent or not is an old and difficult topic and progress is slow. The paper presents a new theorem when a prime number is a congruent number or not. The proof is not necessarily any simpler or shorter…

Number Theory · Mathematics 2021-08-03 Jorma Jormakka , Sourangshu Ghosh

We give two improved explicit versions of the prime number theorem for primes in arithmetic progression: the first isolating the contribution of the Siegel zero and the second completely explicit, where the improvement is for medium-sized…

Number Theory · Mathematics 2021-01-22 Matteo Bordignon

We reveal a relationship between the prime counting function and an operation performed on a unique subsequence of the primes.

General Mathematics · Mathematics 2023-06-21 Michael P. May

We consider the summatory function of the number of prime factors for integers $\leq x$ over arithmetic progressions. Numerical experiments suggest that some arithmetic progressions consist more number of prime factors than others. Greg…

Number Theory · Mathematics 2018-01-23 Xianchang Meng

{\em The Liouville number}, denoted $l$, is defined by $$l:=0.100101011101101111100...,$$ where the $n$th bit is given by ${1/2}(1+\gl(n))$; here $\gl$ is the Liouville function for the parity of prime divisors of $n$. Presumably the…

Number Theory · Mathematics 2008-06-11 Peter Borwein , Michael Coons

Formula for the nth prime using elementary arithmetical functions based in a previous formula changing the characteristic function of prime numbers.

General Mathematics · Mathematics 2007-05-23 Sebastian Martin Ruiz

We propose a multi-scale analysis method for studying arithmetic properties of integer sets, such as primality. Our approach organizes information through a hierarchy of nested sequences, where each level enables a hierarchical expression…

Rings and Algebras · Mathematics 2025-07-15 Mahmoud Melkemi
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