Results 11 to 20 of about 15,705,034 (244)

Densities for Elliptic Curves over Global Function Fields

open access: yes, 2023
Let $K$ be a global function field. We obtain a set of formulas for the densities of the Kodaira types and Tamagawa numbers of elliptic curves over a completion of $K$ that is independent of the field's characteristic. Furthermore, for a finite field $F$ and real numbers $s$ and $ε$ such that $s>1$ and $ε>0$, we prove that there exists a global ...
Yao, Andrew
openaire   +3 more sources

Cryptanalysis and improvement of an encryption scheme that uses elliptic curves over finite fields

open access: yesMaǧallaẗ Al-Kuwayt li-l-ʿulūm, 2021
In this paper, we cryptanalyzed a recently proposed encryption scheme that uses elliptic curves over a finite field. The security of the proposed scheme depends upon the elliptic curve discrete logarithm problem.
Malik Zia Ullah Bashir, R. Ali
semanticscholar   +1 more source

Non-monogenic Division Fields of Elliptic Curves [PDF]

open access: yes, 2020
For various positive integers $n$, we show the existence of infinite families of elliptic curves over $\mathbb{Q}$ with $n$-division fields, $\mathbb{Q}(E[n])$, that are not monogenic, i.e., the ring of integers does not admit a power integral basis.
Hanson Smith
semanticscholar   +1 more source

Elliptic Curves Over Finite Fields [PDF]

open access: yes, 2023
The goal of this thesis is to give an expository report on elliptic curves over finite fields. We begin by giving an overview of the necessary background in algebraic geometry to understand the definition of an elliptic curve. We then explore the general
Calger, Christopher S
core   +1 more source

TORSION OF ELLIPTIC CURVES OVER QUADRATIC CYCLOTOMIC FIELDS [PDF]

open access: yes, 2010
In this paper we study the possible torsions of elliptic curves over ℚ(i) and ℚ(√−3)
Najman, Filip, Filip Najman
core   +1 more source

Algebraic divisibility sequences over function fields [PDF]

open access: yes, 2011
In this note we study the existence of primes and of primitive divisors in function field analogues of classical divisibility sequences. Under various hypotheses, we prove that Lucas sequences and elliptic divisibility sequences over function fields ...
Mahe, Valery   +14 more
core   +2 more sources

Darmon points on elliptic curves over number fields of arbitrary signature [PDF]

open access: yes, 2014
We present new constructions of complex and p ‐adic Darmon points on elliptic curves over base fields of arbitrary signature. We conjecture that these points are global and present numerical evidence to support our conjecture.
Xavier Guitart   +2 more
semanticscholar   +1 more source

Torsion groups of a family of elliptic curves over number fields [PDF]

open access: yes, 2019
summary:We compute the torsion group explicitly over quadratic fields and number fields of degree coprime to 6 for a family of elliptic curves of the form $E\colon y^2 = x^3 +c$, where $c$ is an ...
Dey, Pallab Kanti
core   +1 more source

Multiplication polynomials and relative Manin-Mumford [PDF]

open access: yes, 2015
After the introduction we prove in chapter 2 that the resultant of the standard multiplication polynomials $A_n,B_n$ of an elliptic curve in the form $y^2 = x^3+ax+b$ is
$(16\Delta)^{{n^2(n^2-1) \over 6}}$, where $\Delta=-(4a^3+27b^2)$ is the ...
Schmidt, Harry
core   +1 more source

Torsion points on elliptic curves over function fields and a theorem of Igusa [PDF]

open access: yes, 2008
If F is a global function field of characteristic p > 3 , we employ Tate's theory of analytic uniformization to give an alternative proof of a theorem of Igusa describing the image of the natural Galois representation on torsion points of non-isotrivial ...
A. Bandini, I. Longhi, S. Vigni
semanticscholar   +1 more source

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