English

Motivic & Arithmetic probability of a semistable elliptic surface with a Weierstrass torsion section

Number Theory 2022-07-12 v3 Algebraic Geometry

Abstract

We prove new sharp asymptotic for counting the semistable elliptic curves with two marked Weierstrass points at \infty and 00 and also the cases where 00 is a 2-torsion or a 3-torsion marked Weierstrass point over Fq(t)\mathbb{F}_q(t) by the bounded height of discriminant Δ(X)\Delta(X). We consider the motivic probabilities over any basefield KK with char(K)2,3\text{char}(K) \neq 2,3 of picking a nonsingular semistable elliptic surface over P1\mathbb{P}^{1} with two marked Weierstrass sections at \infty and 00 such that marked Weierstrass section at 00 is 2-torsion or 3-torsion. In the end, we formulate an analogous heuristics on ZQ(B)\mathcal{Z}_{\mathbb{Q}}(\mathcal{B}) for the ratio of the semistable elliptic curves with a marked rational 2-torsion or 3-torsion Weierstrass point at 00 out of all semistable elliptic curves with a marked rational Weierstrass points at 00 over Q\mathbb{Q} by the bounded height of discriminant Δ\Delta through the global fields analogy.

Keywords

Cite

@article{arxiv.2002.06527,
  title  = {Motivic & Arithmetic probability of a semistable elliptic surface with a Weierstrass torsion section},
  author = {Jun-Yong Park},
  journal= {arXiv preprint arXiv:2002.06527},
  year   = {2022}
}

Comments

This paper is superseded by a newer paper, entitled "\'Etale cohomological stability of the moduli space of stable elliptic surfaces" arXiv:2207.02496 (by O. Banerjee, J. Park, and J. Schmitt)