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Related papers: The 3x+1 and 5x+1 Problems

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We introduce a refinement of the classical Liouville function to primes in arithmetic progressions. Using this, we discover new biases in the appearances of primes in a given arithmetic progression in the prime factorizations of integers.…

Number Theory · Mathematics 2020-07-24 Peter Humphries , Snehal M. Shekatkar , Tian An Wong

Nature and our world have a bias! Roughly $30\%$ of the time the number $1$ occurs as the leading digit in many datasets base $10$. This phenomenon is known as Benford's law and it arrises in diverse fields such as the stock market,…

Probability · Mathematics 2023-08-16 Irfan Durmić , Steven J. Miller

Paul Erdos claimed that mathematics is not yet ready to settle the 3x+1 conjecture. I agree, but very soon it will be! With the exponential growth of computer-generated mathematics, we (or rather our silicon brethrern) would have a shot at…

Combinatorics · Mathematics 2009-03-25 Doron Zeilberger

The Collatz problem is generalized into $3n + 3^k$ problem. It is shown that as long as the Collatz function iterates converge to the cycle passing through the number 1, the $3n + 3^k$ sequence converges to the cycle passing through the…

General Mathematics · Mathematics 2026-02-06 David Barina , W. C. Maat

Exploring the Collatz Conjecture and changing the expression from 3n + 1 to 5n + 1, we found patterns in different sets of numbers. Some numbers reduce to one (as stated in the Collatz Conjecture), some might escape to infinity, and some…

Number Theory · Mathematics 2023-05-03 Shouvik Ahmed Antu , Raina Shrimali , Miranda Jones

Criteria are presented for testing whether every trajectory of a dynamic integer system converges to the same fixed point

Dynamical Systems · Mathematics 2021-10-26 Klaus Weise

One of the central problems in additive combinatorics is to determine how large a subset of the first $N$ integers can be before it is forced to contain $k$ elements forming an arithmetic progression. Around 25 years ago, Gowers proved the…

Number Theory · Mathematics 2025-09-30 Sarah Peluse

In this paper we use the Recursion Theorem to show the existence of various infinite sequences and sets. Our main result is that there is an increasing sequence e_0, e_1, e_2 .. such that W_{e_n}={e_{n+1}} for every n. Similarly, we prove…

Logic · Mathematics 2008-01-15 Arnold W. Miller

The Collatz conjecture, also known as the 3n+1 problem, is one of the most popular open problems in number theory. In this note, an algorithm for the verification of the Collatz conjecture is presented that works on a standard PC for…

Number Theory · Mathematics 2025-02-25 Andreas-Stephan Elsenhans

The classical Fibonacci sequence is known to exhibit many fascinating properties. In this paper, we explore the Fibonacci sequence and integer sequences generated by second order linear recurrence relations with positive integer…

Probability · Mathematics 2016-11-11 Arulalan Rajan , R. Vittal Rao , Ashok Rao , H. S. Jamadagni

Integration at a point is a new kind of integration derived from integration over an interval in infinitesimal and infinity domains which are spaces larger than the reals. Consider a continuous monotonic divergent function that is…

General Mathematics · Mathematics 2015-03-04 Chelton D. Evans , William K. Pattinson

The 3n+1, or Collatz problem, is one of the hardest math problems, yet still unsolved. The Collatz conjecture is to prove or disprove that the Collatz sequences COL(n) always eventually reach the number of 1, for all n belongs to N+ (all…

General Mathematics · Mathematics 2025-06-17 Chin-Long Wey

We reduce the principal problem of Additive Number Theory of whether an infinite sequence of integers constitutes a finite basis for the integers to a Diophantine problem involving the difference set of the sequence, by proving a formula…

Number Theory · Mathematics 2007-05-23 Constantin M. Petridi , Peter B. Krikelis

Given $E \subset \mathbb{F}_q^d$, we show that certain configurations occur frequently when $E$ is of sufficiently large cardinality. Specifically, we show that we achieve the statistically number of $k$-stars $\displaystyle\left|\left\{(x,…

Number Theory · Mathematics 2017-08-31 David Covert

Numerical relativity is finally approaching a state where the evolution of rather general (3+1)-dimensional data sets can be computed in order to solve the Einstein equations. After a general introduction, three topics of current interest…

General Relativity and Quantum Cosmology · Physics 2017-09-27 Bernd Bruegmann

This paper gives an heuristic lower bound for the number of integers connected to 1 and less than $x$, $\theta(x) > 0.9x,$ in the context of the $3n+1$ problem.

Number Theory · Mathematics 2020-04-24 Jean-Jacques Daudin

We investigate the distribution of the digits of quotients of randomly chosen positive integers taken from the interval $[1,T]$, improving the previously known error term for the counting function as $T\to+\infty$. We also resolve some…

Number Theory · Mathematics 2021-05-19 Alessandro Gambini , Remis Tonon , Alessandro Zaccagnini

Let $N(x,y)$ denote the number of integers $n\le x$ which are divisible by a shifted prime $p-1$ with $p>y$, $p$ prime. Improving upon recent bounds of McNew, Pollack and Pomerance, we establish the exact order of growth of $N(x,y)$ for all…

Number Theory · Mathematics 2019-10-22 Kevin Ford

The abc conjecture is one of the most famous unsolved problems in number theory. The conjecture claims for each real $\epsilon > 0$ that there are only a finite number of coprime positive integer solutions to the equation $a+b = c$ with $c…

Number Theory · Mathematics 2020-05-18 P. A. CrowdMath

A mapping conjugate to the Collatz mapping seems to imply that $\N=\{1,2,3,\ldots\}$ is partitioned in a trivial loop $\{1\}$ and `strings' that are ordered subsets of $\{\N \setminus 1\}$ that run from an element of $\{2+3\0\}$ to an…

Number Theory · Mathematics 2019-08-06 Maarten J. Wensink
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