English

Periods of $t$-modules as special values

Number Theory 2021-12-07 v3 Commutative Algebra

Abstract

In this article we show that all periods of uniformizable tt-modules (resp. their coordinates) can be obtained via specializing a rigid analytic trivialization of a related dual tt-motive at t=θt=\theta. The proof is even constructive. The central object in the construction is a subset HH of the Tate algebra points of EE which turns out to be isomorphic to the period lattice of EE via kind of generating series in one direction and residues in the other. This isomorphism even holds for arbitrary tt-modules EE, even non-abelian ones.

Keywords

Cite

@article{arxiv.1802.03233,
  title  = {Periods of $t$-modules as special values},
  author = {Andreas Maurischat},
  journal= {arXiv preprint arXiv:1802.03233},
  year   = {2021}
}

Comments

15 pages; v1->v2: added references; removed condition "abelian" in Section 3; added Section 4 relating H to sigma-invariants of the dual t-motive v2->v3: added bound on the rank of H; final version to appear in Journal of Number Theory