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We consider an elliptic curve over a dyadic field with additive, potentially good reduction. We study the finite Galois extension of the dyadic field generated by the three-torsion points of the elliptic curve. As an application, we give a…

Number Theory · Mathematics 2024-02-20 Naoki Imai

We present new addition formulae for the Weierstrass functions associated with a general elliptic curve. We prove the structure of the formulae in n-variables and give the explicit addition formulae for the 2- and 3-variable cases. These…

Algebraic Geometry · Mathematics 2014-09-05 J. Chris Eilbeck , Matthew England , Yoshihiro Ônishi

For E/k an elliptic curve with CM by O, we determine a formula for (a generalization of) the arithmetic local constant of [4] at almost all primes of good reduction. We apply this formula to the CM curves defined over Q and are able to…

Number Theory · Mathematics 2014-11-04 Sunil Chetty , Lung Li

In this article, we construct algebraic equations for a curve C and a map f to an elliptic curve E, with pre-specified branching data. We do this by determining certain relations that the periods of C and E must satisfy and use these…

Number Theory · Mathematics 2014-07-07 Simon Rubinstein-Salzedo

An algorithm is given to compute a normal form for hyperelliptic curves. The elliptic case has been treated in a previous paper. In this paper the hyperelliptic case is treated.

Algebraic Geometry · Mathematics 2007-05-23 Mark van Hoeij

We prove useful necessary and sufficient conditions for an elliptic curve over a number field to admit a surjective adelic Galois representation. Using these conditions, we compute an example of a number field K and an elliptic curve E/K…

Number Theory · Mathematics 2010-03-16 Aaron Greicius

We establish local $(L^p,L^q)$ mapping properties for averages on curves. The exponents are sharp except for endpoints.

Classical Analysis and ODEs · Mathematics 2007-05-23 Terence Tao , Jim Wright

We derive a new bound for some bilinear sums over points of an elliptic curve over a finite field. We use this bound to improve a series of previous results on various exponential sums and some arithmetic problems involving points on…

Number Theory · Mathematics 2013-08-23 Omran Ahmadi , Igor E. Shparlinski

We study elliptic surfaces over $\mathbb{Q}(T)$ with coefficients of a Weierstrass model being polynomials in $\mathbb{Q}[T]$ with degree at most 2. We derive an explicit expression for their rank over $\mathbb{Q}(T)$ depending on the…

Number Theory · Mathematics 2021-09-03 Francesco Battistoni , Sandro Bettin , Christophe Delaunay

In this paper we study the problem of how to determine all elliptic curves defined over an arbitrary number field $K$ with good reduction outside a given finite set of primes $S$ of $K$ by solving $S$-unit equations. We give examples of…

Number Theory · Mathematics 2015-11-17 Angelos Koutsianas

Elliptic curves over finite fields with predefined conditions in the order are practically constructed using the theory of complex multiplication. The stage with longest calculations in this method reconstructs some polynomial with integer…

Number Theory · Mathematics 2012-07-31 E. A. Grechnikov

Let q be a prime power and E a non-isotrivial elliptic curve over Fq(T) given by a Weierstrass model. We survey the construction, with an explicit point of view, of the modular parametrization of E by the associated Drinfeld modular curve.…

Algebraic Geometry · Mathematics 2022-06-03 Valentin Petit

We compute the $L$-functions of a large class of algebraic curves, and verify the expected functional equation numerically. Our computations are based on our previous results on stable reduction to calculate the local $L$-factor and the…

Number Theory · Mathematics 2015-04-03 Michel Börner , Irene I. Bouw , Stefan Wewers

We study hyperelliptic curves y^2=f(x) over local fields of odd residue characteristic. We introduce the notion of a "cluster picture" associated to the curve, that describes the p-adic distances between the roots of f(x), and show that…

Number Theory · Mathematics 2026-01-13 Tim Dokchitser , Vladimir Dokchitser , Céline Maistret , Adam Morgan

In this lecture we give a brief introduction to Weierstrass points of curves and computational aspects of $q$-Weierstrass points on superelliptic curves.

Complex Variables · Mathematics 2019-05-30 T. Shaska , C. Shor

We give explicit formulas for the number of points on reductions of elliptic curves with complex multiplication by any imaginary quadratic field. We also find models for CM $\mathbf{Q}$-curves in certain cases. This generalizes earlier…

Number Theory · Mathematics 2009-08-06 K. Rubin , A. Silverberg

We give an asymptotic formula for the number of elliptic curves over $\mathbb{Q}$ with bounded Faltings height. Silverman has shown that the Faltings height for elliptic curves over number fields can be expressed in terms of modular…

Number Theory · Mathematics 2016-02-18 Ruthi Hortsch

In this note we investigate the $p$-degree function of elliptic curves over the field $\mathbb{Q}_p$ of $p$-adic numbers. The $p$-degree measures the least complexity of a non-zero $p$-torsion point on an elliptic curve. We prove some…

Number Theory · Mathematics 2017-09-25 Jędrzej Garnek

We discuss a family of multi-term addition formulae for Weierstrass functions on specialized curves of genus one and two with many automorphisms. In the genus one case we find new addition formulae for the equianharmonic and lemniscate…

Algebraic Geometry · Mathematics 2011-03-15 J. C. Eilbeck , S. Matsutani , Y. Onishi

We give explicit formulas for the number of distinct elliptic curves over a finite field, up to isomorphism, in the families of Legendre, Jacobi, Hessian and generalized Hessian curves.

Algebraic Geometry · Mathematics 2011-12-30 Reza Rezaeian Farashahi
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