Typically bounding torsion on elliptic curves isogenous to rational

نویسندگان

چکیده

We prove that the family I F 0 \mathcal {I}_{F_0} of elliptic curves over number fields are geometrically isogenous to an curve with alttext="upper encoding="application/x-tex">F_0 -rational alttext="j"> j encoding="application/x-tex">j -invariant is typically bounded in torsion. Under additional uniformity assumption, we also d d {I}_{d_0} degree alttext="d encoding="application/x-tex">d_0

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

On computing rational torsion on elliptic curves

We introduce an l-adic algorithm to efficiently determine the group of rational torsion points on an elliptic curve. We also make a conjecture about the discriminant of the m-division polynomial of an elliptic curve.

متن کامل

On standardized models of isogenous elliptic curves

Let E, E′ be isogenous elliptic curves over Q given by standardized Weierstrass models. We show that (in the obvious notation) a1 = a1, a ′ 2 = a2, a ′ 3 = a3 and, moreover, that there are integers t, w such that a4 = a4 − 5t and a6 = a6 − b2t − 7w, where b2 = a1 + 4a2.

متن کامل

On the torsion of rational elliptic curves over quartic fields

Let E be an elliptic curve defined over Q and let G = E(Q)tors be the associated torsion subgroup. We study, for a given G, which possible groups G ⊆ H could appear such that H = E(K)tors, for [K : Q] = 4 and H is one of the possible torsion structures that occur infinitely often as torsion structures of elliptic curves defined over quartic number fields. Let K be a number field, and let E be a...

متن کامل

Almost Rational Torsion Points on Semistable Elliptic Curves

If P is an algebraic point on a commutative group scheme A/K, then P is almost rational if no two non-trivial Galois conjugates σP , τP of P have sum equal to 2P . In this paper, we classify almost rational torsion points on semistable elliptic curves over Q. 1 Definitions and Results Let X be an algebraic curve of genus greater than one. Let J(X) be the Jacobian variety of X, and embed X in J(...

متن کامل

Families of elliptic curves with rational 3-torsion

In this paper we look at three families of elliptic curves with rational 3-torsion over a finite field. These families include Hessian curves, twisted Hessian curves, and a new family we call generalized DIK curves. We find the number of Fq-isogeny classes of each family, as well as the number of Fq-isomorphism classes of the generalized DIK curves. We also include some formulas for efficient c...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Proceedings of the American Mathematical Society

سال: 2023

ISSN: ['2330-1511']

DOI: https://doi.org/10.1090/proc/16298