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The counting function for the numbers satisfying the Collatz conjecture is studied. A related exponential congruence equation is investigated, yielding a method to construct its solutions from free variables, and enabling us to find at…

General Mathematics · Mathematics 2025-12-18 Chunlei Liu

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

Pairs of consecutive integers have the same height in the Collatz problem with surprising frequency. Garner gave a conjectural family of conditions for exactly when this occurs. Our main result is an infinite family of counterexamples to…

Number Theory · Mathematics 2015-12-01 Marcus Elia , Amanda Tucker

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

The famous (3n + 1) or Collatz conjecture has admitted some progress over the last several decades towards the conclusion that the conjecture is true (i.e. that all Collatz sequences will eventually reach a value of one), but has stubbornly…

General Mathematics · Mathematics 2021-03-30 Brian Mohan Gurbaxani

In this paper we present the statement of the Firoozbakht's conjecture, some of its consequences if it is proved and we show a consequence of Zhang's theorem concerning the Firoozbakht's conjecture.

Number Theory · Mathematics 2017-03-21 Luan Alberto Ferreira , Hugo Luiz Mariano

We introduce the \emph{Collatz conjecture} and its history. Some definition that this conjecture has, will be expressed and with these we try to explain some good lemma to justify the main properties of the \emph{Collatz conjecture}. With…

General Mathematics · Mathematics 2021-12-09 Benyamin Khanzadeh Holasou

In this paper, we give a counter-example, in the general case, Kronecker theorem will derive contradiction. Kronecker theorem be correct after removing some conditions.

General Mathematics · Mathematics 2023-05-16 JinHua Fei

In this note, we disprove two Romanov type conjectures posed by Chen.

Number Theory · Mathematics 2022-05-23 Yuchen Ding

Consider a finite positive integer. If it is even, divide it by 2, and if it is odd, multiply it by 3 and add 1. This will give you a new integer. Following the procedure for the new integer, you will receive another integer. Repeat the…

General Mathematics · Mathematics 2021-05-26 Hassan Rezai Soleymanpour

I show here that there are three different kinds of iterations for the reduced Collatz algorithm; depending on whether the root of the number is odd or even. There is only one kind of iteration if the root is odd and two kinds if the root…

General Mathematics · Mathematics 2022-10-28 Leonel Sternberg

We provide a proof of a variant of the Landau-Siegel Zeros conjecture.

Number Theory · Mathematics 2007-05-31 Yitang Zhang

The purpose of this note is to show by constructing counterexamples that two conjectures of M\'{o}ri and Sz\'{e}kely for the Borel-Cantelli lemma are false.

Number Theory · Mathematics 2013-04-03 Chunrong Feng , Liangpan Li

I want to show one possibility to proof the Collatz conjecture, also called 3n+1 conjecture, for any natural number N. For this, I limit my analysis on the direct odd follower of every natural odd number and show the connections between the…

General Mathematics · Mathematics 2013-03-14 Carolin Zöbelein

The scope of the present work is to explain why it is true that all N have a distinct position in The Collatz Tree (The Collatz Graph)

General Mathematics · Mathematics 2025-09-03 R. Bruun

The better title is "Yet another FALSE proof of the 4-colour theorem." Please consider all versions of this paper as historical material on the way to a non-computer proof of the 4-colour theorem. Interpreted as proofs, all versions are…

General Mathematics · Mathematics 2009-05-22 Peter Doerre

The article provides a counterexample to a conjecture by Blocki-Zwonek.

Complex Variables · Mathematics 2015-07-20 John Erik Fornæss

In this paper we propose counterexamples to the Geometrization Conjecture and the Elliptization Conjecture.

Geometric Topology · Mathematics 2007-05-23 Sze Kui Ng

The "paradox" arises in the Two Envelopes Paradox from the incorrect formulation of the argument. The infomation given is misused and therefore the results are incorrect for the question asked. The key is to be clear on what question we are…

Data Analysis, Statistics and Probability · Physics 2007-05-23 Adom Giffin

The paper presents a counterexample to the Hodge conjecture.

General Mathematics · Mathematics 2020-07-28 Jorma Jormakka