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This article is a survey based on our earlier paper ("The 'Vertical' Generalization of the Binary Goldbach's Conjecture as Applied on 'Iterative' Primes with (Recursive) Prime Indexes (i-primeths)" [11]), a paper in which we have proposed a…

General Mathematics · Mathematics 2020-10-05 Andrei-Lucian Drăgoi

We consider the exceptional set in the binary Goldbach problem for sums of two almost twin primes. Our main result is a power-saving bound for the exceptional set in the problem of representing $m=p_1+p_2$ where $p_1+2$ has at most $2$…

Number Theory · Mathematics 2022-07-20 Lasse Grimmelt , Joni Teräväinen

Improving earlier estimates of several authors we show that the number E(X) of Goldbach exceptional even integers (that is, even integers which cannot be written as the sum of two primesw) below X satisfies tho bound E(X) < X^0.72 for…

Number Theory · Mathematics 2018-05-01 Janos Pintz

We state a general purpose algorithm for quickly finding primes in evenly divided sub-intervals. Legendre's conjecture claims that for every positive integer $n$, there exists a prime between $n^2$ and $(n+1)^2$. Oppermann's conjecture…

Number Theory · Mathematics 2024-12-11 Jonathan Sorenson , Jonathan Webster

An positive even number is said to be a Kronecker number if it can be written in infinitely many ways as the difference between two primes, and it is believed that all even numbers are Kronecker numbers. We will study the division and…

Number Theory · Mathematics 2024-11-20 Sayan Goswami , Wen Huang , XiaoSheng Wu

We show that every even number $>\exp\exp 36$ can be represented as the sum of a prime and a product of at most two primes.

Number Theory · Mathematics 2015-12-18 Tomohiro Yamada

It is well known that the following Collatz Conjecture is one of the unsolved problems in mathematics. Collatz Conjecture: For any positive integer $n>1$, the following recursive algorithm will convergent to 1 by a finite number of steps.…

General Mathematics · Mathematics 2022-09-28 Lei Li

In this note we use recent developments in sieve theory to highlight the interplay between Goldbach and de Polignac numbers. Assuming that the primes have level of distribution greater than $1/2$, we show that at least one of two nice…

Number Theory · Mathematics 2021-02-19 Jacques Benatar

Let $\mathcal{P}$ denote the set of all primes. $P_{1},P_{2},P_{3}$ are three subsets of $\mathcal{P}$. Let $\underline{\delta}(P_{i})$ $(i=1,2,3)$ denote the lower density of $P_{i}$ in $\mathcal{P}$, respectively. It is proved that if…

Number Theory · Mathematics 2016-03-02 Quanli Shen

In this paper we use the connected sum operation on knots to show that there is a one-to-one relation between knots and numbers. In this relation prime knots are bijectively assigned with prime numbers such that the prime number 2…

General Mathematics · Mathematics 2007-05-23 Sze Kui Ng

Based on the propositional description of even Goldbach conjecture, in order to verify the truth of even Goldbach conjecture, we will deeply discuss this question and present a new computing model of $G{{N}_{e}}TM$ Turing Machine. This…

Computational Complexity · Computer Science 2021-12-30 Bogang Lin

By developing the method of Wooley on the quadratic Waring-Goldbach problem, we prove that all sufficiently large even integers can be expressed as a sum of four squares of primes and 46 powers of 2.

Number Theory · Mathematics 2013-08-27 Lilu Zhao

Consider the set of all natural numbers that are co-prime to primes less than or equal to a given prime. Then given a consecutive pair of numbers in that set with an arbitrary even gap, we prove there exists an unbounded number of actual…

General Mathematics · Mathematics 2021-11-18 John K Sellers

In this paper we prove two results concerning Vinogradov's three primes theorem with primes that can be called almost twin primes. First, for any $m$, every sufficiently large odd integer $N$ can be written as a sum of three primes $p_1,…

Number Theory · Mathematics 2019-02-20 Kaisa Matomäki , Xuancheng Shao

By means of a dynamical process we provide a characterization of the Goldbach Conjecture in an infinite set of even numbers that depends on time.

General Mathematics · Mathematics 2007-06-22 Fernando Revilla

1. There is no existing any quadratic interval $\eta_{n}:=(n^{2},(n+1)^{2}],$ which contains less than 2 prime numbers. The number of prime numbers within $\eta_{n}$ goes averagely linear with n to infinity. 2. The exact law of the number…

General Mathematics · Mathematics 2015-09-02 Hans Walther Ernst Gerhart Schmidt

The Legendre conjecture has resisted analysis over a century, even under assumption of the Riemann Hypothesis. We present, a significant improvement on previous results by greatly reducing the assumption to a more modest statement called…

General Mathematics · Mathematics 2019-03-05 Madieyna Diouf

The Polignac's Conjecture, first formulated by Alphonse de Polignac in 1849, asserts that, for any even number M, there exist infinitely many couples of prime numbers P, P+M. When M = 2, this reduces to the Twin Primes Conjecture. Despite…

General Mathematics · Mathematics 2023-03-13 Giulio Morpurgo

A pair of odd primes is said to be symmetric if each prime is congruent to one modulo their difference. A theorem from 1996 by Fletcher, Lindgren, and the third author provides an upper bound on the number of primes up to x that belong to a…

Number Theory · Mathematics 2019-08-27 William Banks , Paul Pollack , Carl Pomerance

In this paper, we will introduce an extension to the Collatz's conjecture. This conjecture may be seen as a general conjecture that unifies the Collatz one together with many other similar conjectures. For instance, we propose our new…

General Mathematics · Mathematics 2026-01-13 Abderrahman Bouhamidi