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We give a characterization of all three points in $\mathbb R^4$ with integer coordinates which are at the same Euclidean distance apart. In three dimension the problem is characterized in terms of solutions of the Diophantine equations…

Number Theory · Mathematics 2013-07-16 Eugen J. Ionascu

We have found some new solutions of both rational and trigonometric types by rewriting Yang-Baxter equation as a triple product equation in a vector space of matrices.

High Energy Physics - Theory · Physics 2009-10-28 Susumu Okubo

In this paper, we study multiplicity of solutions of the Yamabe problem on product manifolds with minimal boundary via bifurcation theory.

Differential Geometry · Mathematics 2015-10-20 Elkin Dario Cárdenas Diaz , Ana Cláudia da Silva Moreira

Some symmetry problems are formulated and solved. New simple proofs are given for the earlier studied symmetry problems.

Classical Analysis and ODEs · Mathematics 2009-03-04 N. S. Hoang , A. G. Ramm

In this paper we combine methods from additive combinatorics and Diophantine geometry to study the generalised sum-product phenomenon in algebraic groups. As an application of this circle of ideas, we resolve a conjecture of Bremner on…

Number Theory · Mathematics 2026-03-09 Joseph Harrison , Akshat Mudgal , Harry Schmidt

In this paper, we present a synthetic solution to a geometric open problem involving the radical axis of two strangely defined circumcircles. The solution encapsulates two generalizations, one of which uses a powerful projective result…

Metric Geometry · Mathematics 2020-12-11 Xuming Liang , Ivan Zelich

We resolve a problem of Anderson and Fulton by providing a symmetric and positive product rule for the equivariant cohomology of projective space.

Combinatorics · Mathematics 2026-05-13 Duy Phan

Motivated by the recent result of Farhi we show that for each $n\equiv \pm 1\pmod{6}$ the title Diophantine equation has at least two solutions in integers. As a consequence, we get that each (even) perfect number is a sum of three cubes of…

Number Theory · Mathematics 2017-05-03 Maciej Ulas

This paper collects polynomial Diophantine equations that are simple to state but apparently difficult to solve.

General Mathematics · Mathematics 2026-05-26 Bogdan Grechuk

In this article we establish two new results on quantitative Diophantine approximation for one-parameter families of diagonal ternary indefinite forms. In the first result, we consider quadratic forms taking values at prime points. In the…

Number Theory · Mathematics 2023-11-20 Anish Ghosh , V. Vinay Kumaraswamy

In this paper we propose a method of solving a Nonlinear Diophantine Equation by converting it into a System of Diophantine Linear Equations.

General Mathematics · Mathematics 2009-10-14 Florentin Smarandache

Finding integer solutions to norm form equations is a classical Diophantine problem. Using the units of the associated coefficient ring, we can produce sequences of solutions to these equations. It is known that these solutions can be…

Number Theory · Mathematics 2021-11-18 Elisa Bellah

We present in this article a general approach (in the form of recommendations and guidelines) for tackling Diophantine equation problems (whether single equations or systems of simultaneous equations). The article should be useful in…

History and Overview · Mathematics 2024-06-26 Taha Sochi

For fixed integers $D \geq 0$ and $c \geq 3$, we demonstrate how to use $2$-adic valuation trees of sequences to analyze Diophantine equations of the form $x^2+D=2^cy$ and $x^3+D=2^cy$, for $y$ odd. Further, we show for what values $D \in…

Number Theory · Mathematics 2021-05-10 Maila Brucal-Hallare , Eva G. Goedhart , Ryan Max Riley , Vaishavi Sharma , Bianca Thompson

We propose a new approach for the study of the quadratic stochastic Euclidean bipartite matching problem between two sets of $N$ points each, $N\gg 1$. The points are supposed independently randomly generated on a domain…

Statistical Mechanics · Physics 2015-12-02 Sergio Caracciolo , Gabriele Sicuro

In this paper, we bring a complete solution to the Ovals problem, as formulated in [3] and [24].

Functional Analysis · Mathematics 2025-04-22 Yacine Chitour , Jochen Denzler , Frédéric Jean , Emmanuel Trélat

In this study we find all solutions of the Diophantine equation $B_{n_{1}}+B_{n_{2}}=2^{a_{1}}+2^{a_{2}}+2^{a_{3}}$ in positive integer variables $(n_{1},n_{2},a_{1},a_{2},a_{3}),$ where $B_{n}$ denotes the $n$-th balancing number.

Number Theory · Mathematics 2023-06-22 Kisan Bhoi , Prasanta Kumar Ray

This paper initiates a novel research direction in the theory of Diophantine equations: define an appropriate version of the equation's size, order all polynomial Diophantine equations starting from the smallest ones, and then solve the…

General Mathematics · Mathematics 2022-04-15 Bogdan Grechuk

A survey is given of results about coherence for categories with finite products and coproducts. For these results, which were published previously by the authors in several places, some formulations and proofs are here corrected, and…

Category Theory · Mathematics 2008-12-08 K. Dosen , Z. Petric

We present new infinite arctangent sums and infinite sums of products of arctangents. Many previously known evaluations appear as special cases of the general results derived in this paper.

Number Theory · Mathematics 2017-11-17 Kunle Adegoke