English

Finiteness of local torsion for abelian t-modules

Number Theory 2016-03-15 v1

Abstract

Let C/FqC/\mathbb{F}_q be a regular projective curve, C\infty \in C a closed point, A:=Γ(C{},OC)A := \Gamma(C - \{\infty\}, \mathcal{O}_C), and K:=K(C)K := K(C) the fraction field of AA. Consider a finite extension L/KL/K, a place vv of LL, and an abelian AA-module MM (in the sense of Anderson) over LvL_v. We prove that the LvL_v-rational torsion submodule M(Lv)torsM(L_v)_{\mathrm{tors}} of MM is a finite AA-module.

Keywords

Cite

@article{arxiv.1603.03789,
  title  = {Finiteness of local torsion for abelian t-modules},
  author = {Vesselin Dimitrov},
  journal= {arXiv preprint arXiv:1603.03789},
  year   = {2016}
}