Results 11 to 20 of about 51 (51)

Brauer–Manin obstruction for Erdős–Straus surfaces

open access: yesBulletin of the London Mathematical Society, Volume 52, Issue 4, Page 746-761, August 2020., 2020
Abstract We study the failure of the integral Hasse principle and strong approximation for the Erdős–Straus conjecture using the Brauer–Manin obstruction.
Martin Bright, Daniel Loughran
wiley   +1 more source

An elliptic Diophantine equation from the study of partitions [PDF]

open access: yes, 2019
We present the elliptic equation X3 + 2 = Y 2 as the first in a sequence of Diophantine equations arising from some new results in the theory of partitions of multisets with equal sums.
ANDRICA, Dorin, ȚURCAȘ, George C.
core   +2 more sources

How to generate all integral triangles containing a given angle

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 24, Issue 8, Page 569-572, 2000., 2000
We present an elementary prescription based on the rational secant method for generating all the integral triangles containing a given angle of rational cosine. This is a direct generalization of the ancient problem of finding all the Pythagorean triples. As an example, we discuss a specific equation studied by Diophantus of Alexandria, which turns out
Nelson Petulante, Ifeoma Kaja
wiley   +1 more source

$E_{6}$ AND THE ARITHMETIC OF A FAMILY OF NON-HYPERELLIPTIC CURVES OF GENUS 3

open access: yesForum of Mathematics, Pi, 2015
We study the arithmetic of a family of non-hyperelliptic curves of genus 3 over the field $\mathbb{Q}$ of rational numbers. These curves are the nearby fibers of the semi-universal deformation of a simple singularity of type $E_{6}$. We show that average
JACK A. THORNE
doaj   +1 more source

NON-ARCHIMEDEAN YOMDIN–GROMOV PARAMETRIZATIONS AND POINTS OF BOUNDED HEIGHT

open access: yesForum of Mathematics, Pi, 2015
We prove an analog of the Yomdin–Gromov lemma for $p$-adic definable sets and more broadly in a non-Archimedean definable context. This analog keeps track of piecewise approximation by Taylor polynomials, a nontrivial aspect in the totally disconnected ...
RAF CLUCKERS   +2 more
doaj   +1 more source

Complete verification of strong BSD for many modular abelian surfaces over ${\mathbf {Q}}$

open access: yesForum of Mathematics, Sigma
We develop the theory and algorithms necessary to be able to verify the strong Birch–Swinnerton-Dyer Conjecture for absolutely simple modular abelian varieties over ${\mathbf {Q}}$ . We apply our methods to all 28 Atkin–Lehner quotients of $X_0(
Timo Keller, Michael Stoll
doaj   +1 more source

Preliminary characterization and localization of three candidate biomineralization proteins in Emiliania huxleyi [PDF]

open access: yes, 2014
The marine phytoplankton, E. huxleyi, synthesizes calcite disks in an intracellular golgi-derived complex known as the coccolith vesicle. Synthesis is thought to involve the coordinated activity of a polysaccharide-protein polymer complex that acts both ...
Wesley Erik Shipley
core  

Rational torsion points on abelian surfaces with quaternionic multiplication

open access: yesForum of Mathematics, Sigma
Let A be an abelian surface over ${\mathbb {Q}}$ whose geometric endomorphism ring is a maximal order in a non-split quaternion algebra. Inspired by Mazur’s theorem for elliptic curves, we show that the torsion subgroup of $A({\mathbb {Q}})$
Jef Laga   +3 more
doaj   +1 more source

The genus of curves over finite fields with many rational points, [PDF]

open access: yes, 1996
. We prove the following result which was conjectured by Stichtenoth and Xing: let g be the genus of a projective, non-singular, geometrically irreducible, algebraic curve defined over the finite field with q 2 elements whose number of rational points ...
Rainer Fuhrmann, Fernando Torres
core  

Rank jumps and multisections of elliptic fibrations on K3 surfaces

open access: yesForum of Mathematics, Sigma
We consider the countably many families $\mathcal {L}_d$ , $d\in \mathbb {N}_{\geq 2}$ , of K3 surfaces admitting an elliptic fibration with positive Mordell–Weil rank. We prove that the elliptic fibrations on the very general member of these
Alice Garbagnati, Cecília Salgado
doaj   +1 more source

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