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[This is an older version of the paper, which will be updated soon.] In the present paper, we continue our research on the generalized Fermat equation $x^r + y^s = z^t$ with signature $(r, s, t)$, where $r, s, t \ge 2$ are positive integers…

Number Theory · Mathematics 2025-10-08 Zhong-Peng Zhou

We provide several extensions of the modular method which were motivated by the problem of completing previous work to prove that, for any integer $n \geq 2$, the equation \[ x^{13} + y^{13} = 3 z^n \] has no non-trivial solutions. In…

Number Theory · Mathematics 2022-03-10 Nicolas Billerey , Iimin Chen , Lassina Dembele , Luis Dieulefait , Nuno Freitas

The purpose of the paper is to study some problems raised by Hayman and Gundersen about the existence of non-trivial entire and meromorphic solutions for the Fermat type functional equation $f^n+g^n+h^n=1$. Hayman showed that no non-trivial…

Complex Variables · Mathematics 2016-12-13 Tuen-Wai Ng , Sai-Kee Yeung

Aim of this paper is to study the non-existence of global solutions of the fractional differential problem involving generalized Katugampola derivative. We utilize the test function method and fractional integration by parts formula to…

Classical Analysis and ODEs · Mathematics 2018-08-10 Sandeep P Bhairat

This note proves two theorems regarding Fermat-type equation $x^r + y^r = dz^p$ where $r \geq 5$ is a prime. Our main result shows that, for infinitely many integers~$d$, the previous equation has no non-trivial primitive solutions such…

Number Theory · Mathematics 2023-06-13 Nuno Freitas , Filip Najman

We announce here that Fermat's Last theorem was solved, but there is an easy proof of it on the basis of elemetary undergraduate mathematics. We shall disclose such an easy proof.

General Mathematics · Mathematics 2021-10-13 YangGon Kim , SooGon Kim , BumSeok Jeon , SeungKon Kim , ChangKon Kim

Let C : y^2=f(x) be a hyperelliptic curve defined over the rationals. Let K be a number field and suppose f factors over K as a product of irreducible polynomials f=f_1 f_2...f_r. We shall define a "Selmer set" corresponding to this…

Number Theory · Mathematics 2016-08-03 Samir Siksek , Michael Stoll

In this paper, we prove that the only primitive solutions of the equation $a^2+3b^6=c^n$ for $n\geq 3$ are $(a,b,c,n)=(\pm 47,\pm 2,\pm 7,4)$. Our proof is based on the modularity of Galois representations of $\mathbb Q$-curves and the work…

Number Theory · Mathematics 2019-04-16 Angelos Koutsianas

The Modular Group provides simple proofs of Fermat's representations: X^2+Y^2 for primes congruent to 1 (mod 4) and by X^2+3Y^2 for primes congruent to 1 (mod 3)

Number Theory · Mathematics 2021-09-22 Robert J Sibner

We give a cyclotomic proof of the fact that the equation $\frac{x^p + y^p}{x+y} = p^e z^q$ has no solutions in coprime integers $x,y,z$ and $p > 3; q$, a pair of distinct odd primes.

Number Theory · Mathematics 2025-09-24 Preda Mihailescu

We consider the Diophantine equation $7x^{2} + y^{2n} = 4z^{3}$. We determine all solutions to this equation for $n = 2, 3, 4$ and $5$. We formulate a Kraus type criterion for showing that the Diophantine equation $7x^{2} + y^{2p} = 4z^{3}$…

Number Theory · Mathematics 2021-06-30 Karolina Chałupka , Andrzej Dąbrowski , Gökhan Soydan

We present a new result on the nonexistence of generalized bent functions (GBFs)from (Z/tZ)^n to Z/tZ (called type [n, t]) for a large class. Assume p is an odd prime number. By showing certain quadratic norm form equations having no…

Information Theory · Computer Science 2026-03-26 Chang Lv , Yuqing Zhu

We show that an elementary proof of Fermat's Last Theorem (FLT) exists. Our paper also extends the scope of FLT from integers to all rational numbers.

General Mathematics · Mathematics 2020-10-09 Yuri Arenberg

A elementary proof of Fermat"s Last Theorem[1] is presented for the case of even exponents n=2q, where q is any integer, including 2. For even exponents, the proof of the theorem reduces to showing that solutions of the Pythagorean equation…

General Mathematics · Mathematics 2017-07-11 Anatoly A. Grinberg

This paper proposes a generalized ABC conjecture and assuming its validity settles a generalized version of Fermats last theorem.

General Mathematics · Mathematics 2015-07-09 Dhananjay P. Mehendale

Let $K$ be a totally real number field and $\mathcal{O}_K$ be the ring of integers of $K$. In this article, we study the asymptotic solutions of the generalized Fermat equation $Ax^p+By^p+Cz^p=0$ over $K$ with prime exponent $p$, where…

Number Theory · Mathematics 2026-02-11 Satyabrat Sahoo

We give a simple direct proof of Fermat's two squares theorem. Our argument uses no intricate notions or ideas; one might say that it is a proof by careful bookkeeping. As such, the proof may be particularly easy to comprehend by students…

History and Overview · Mathematics 2025-08-15 Gennady Bachman

Using modularity, level lowering, and explicit computations with Hilbert modular forms, Galois representations and ray class groups, we show that for $3 \le d \le 23$ squarefree, $d \ne 5$, $17$, the Fermat equation $x^n+y^n=z^n$ has no…

Number Theory · Mathematics 2016-01-20 Nuno Freitas , Samir Siksek

An alternative form of Fermats equation[1] is proposed. It represents a portion of the identity that includes three terms of Fermats original equation. This alternative form permits an elementary and compact proof of the first case of…

General Mathematics · Mathematics 2014-09-26 Anatoly A. Grinberg

We investigate the existence of non-trivial holomorphic and meromorphic solutions of Fermat functional equations over an open Riemann surface $S$. When $S$ is hyperbolic, we prove that any $k$-term Fermat functional equation always exists…

Complex Variables · Mathematics 2021-04-20 Xianjing Dong , Liangwen Liao , Kai Liu