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This contribution presents all possible solutions to the Diophantine equations $F_k=L_mL_n$ and $L_k=F_mF_n$. To be clear, Fibonacci numbers that are the product of two arbitrary Lucas numbers and Lucas numbers that are the product of two…

Number Theory · Mathematics 2023-12-06 Ahmet Daşdemir , Ahmet Emin

Let $a,b,c$ be relatively prime positive integers such that $a^{2}+b^{2}=c^{2}.$ In 1956, Je\'{s}manowicz conjectured that for any positive integer $n$, the only solution of $(an)^{x}+(bn)^{y}=(cn)^{z}$ in positive integers is…

Number Theory · Mathematics 2013-10-24 Min Tang , Jian-Xin Weng

For an integer $x$ let $t_x$ denote the triangular number $x(x+1)/2$. Following a recent work of Z. W. Sun, we show that every natural number can be written in any of the following forms with $x,y,z\in\Z$: $$x^2+3y^2+t_z, x^2+3t_y+t_z,…

Number Theory · Mathematics 2007-12-24 Song Guo , Hao Pan , Zhi-Wei Sun

A classical theorem of Kempner states that the sum of the reciprocals of positive integers with missing decimal digits converges. This result is extended to much larger families of "missing digits" sets of positive integers with convergent…

Number Theory · Mathematics 2022-12-14 Melvyn B. Nathanson

This paper explores the intricate relationships between Lucas numbers and Diophantine equations, offering significant contributions to the field of number theory. We first establish that the equation regarding Lucas number $L_n = 3x^2$ has…

General Mathematics · Mathematics 2024-09-17 Priyabrata Mandal

The problem of finding perfect Euler cuboids or proving their non-existence is an old unsolved problem in mathematics. The third cuboid conjecture is the last of the three propositions suggested as intermediate stages in proving the…

Number Theory · Mathematics 2012-03-13 Ruslan Sharipov

We classify all solution triples with $k$-Fibonacci components to the equation $x^2+y^2+z^2=3xyz+m,$ where $m$ is a positive integer and $k\geq 2$. As a result, for $m=8$, we have the Markoff triples with Pell components $(F_2(2), F_2(2n),…

General Mathematics · Mathematics 2024-09-24 D. Alfaya , L. A. Calvo , A. Martínez de Guinea , J. Rodrigo , A. Srinivasan

In this paper, we connect four different branches of Mathematics: Statistics, Probability, Algebra and Discrete Mathematics with the objective of introducing new results on Markov chains and evolution algebras obtained by following a…

The investigation of the ideal class group $Cl_K$ of an algebraic number field $K$ is one of the key subjects of inquiry in algebraic number theory since it encodes a lot of arithmetic information about K. There is a considerable amount of…

Number Theory · Mathematics 2023-11-16 Srilakshmi Krishnamoorthy , Sunil Kumar Pasupulati , Muneeswaran R

The volume conjecture relates the quantum invariant and the hyperbolic geometry. Bonahon-Wong-Yang introduced a new version of the volume conjecture by using the intertwiners between two isomorphic irreducible representations of the skein…

Algebraic Topology · Mathematics 2025-08-20 Zhihao Wang

We discuss conjectures related to the following two conjectures: (1) for each complex numbers x_1,...,x_n there exist rationals y_1,...,y_n \in [-2^{n-1},2^{n-1}] such that \forall i \in {1,...,n} (x_i=1 \Rightarrow y_i=1) \forall i,j,k \in…

Classical Analysis and ODEs · Mathematics 2010-03-30 Apoloniusz Tyszka

The 3x+ 1 problem concerns iteration of the map on the integers given by T(n) = (3n+1)/2 if n is odd; T(n) = n/2 if n is even. The 3x+1 Conjecture asserts that for every positive integer n > 1 the forward orbit of n under iteration by T…

Number Theory · Mathematics 2011-01-12 Jeffrey C. Lagarias

We consider a class of finite Markov moment problems with arbitrary number of positive and negative branches. We show criteria for the existence and uniqueness of solutions, and we characterize in detail the non-unique solution families.…

Numerical Analysis · Mathematics 2009-10-28 Laurent Gosse , Olof Runborg

The Lagrange and Markov spectra $L$ and $M$ describe the best constants of Diophantine approximations for irrational numbers and binary quadratic forms. In 1880, A. Markov showed that the initial portions of these spectra coincide: indeed,…

Number Theory · Mathematics 2024-11-12 Harold Erazo , Davi Lima , Carlos Matheus , Carlos Gustavo Moreira , Sandoel Vieira

A positive integer $n$ is called a $\theta$-congruent number if there is a triangle with sides $a,b$ and $c$ for which the angle between $a$ and $b$ is equal to $\theta$ and its area is $n\sqrt{r^2 - s^2}$, where $0 < \theta < \pi$, $\cos…

Number Theory · Mathematics 2023-08-29 Jerome T. Dimabayao , Soma Purkait

Prime numbers are one of the most intriguing figures in mathematics. Despite centuries of research, many questions remain still unsolved. In recent years, computer simulations are playing a fundamental role in the study of an immense…

History and Overview · Mathematics 2020-02-04 Alberto Fraile , Roberto Martinez , Daniel Fernandez

In earlier work we initiated a program to study relationships between finite groups and arithmetic geometric invariants of modular curves in a systematic way. In the present work we continue this program, with a focus on the two smallest…

Representation Theory · Mathematics 2023-07-13 Miranda C. N. Cheng , John F. R. Duncan , Michael H. Mertens

In this paper, we discuss the well known 3x+1 conjecture in form of the accelerated Collatz function T defined on the positive odd integers. We present a sequence of quotient spaces and an invertible map that are intrinsically related to…

Number Theory · Mathematics 2016-07-26 Peter Hellekalek

The probabilistic description of finite classical systems often leads to linear kinetic equations. A set of physically motivated mathematical requirements is accordingly formulated. We show that it necessarily implies that solutions of such…

Mathematical Physics · Physics 2008-11-06 Constantinos Tzanakis , Alkis P. Grecos

The present work focuses on the study of the renowned Collatz conjecture, also known as the $3x +1$ problem. The distinguished analysis approach lies on the dynamics of an iterative map in binary form. A new estimation of the enlargement of…

Dynamical Systems · Mathematics 2019-10-21 Pablo Castañeda
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