English

Generation of cyclotomic Hecke fields by $L$-values of cusp forms on $\mathrm{GL}(2)$ with certain $\mathbb{Z}_p$ twist

Number Theory 2024-06-14 v1

Abstract

Let FF be a number field, ff an algebraic automorphic newform on GL(2)\mathrm{GL}(2) over FF, pp an odd prime does not divide the class number of FF and the level of ff. We prove that ff is determined by its LL-values twisted by Galois characters ϕ\phi of certain Zp\mathbb{Z}_p-extension of FF. Furthermore, if FF is totally real or CM, then under some mild assumption on ff, the compositum of the Hecke field of ff and the cyclotomic field Q(ϕ)\mathbb{Q}(\phi) is generated by the algebraic LL-values of ff twisted by Galois characters ϕ\phi of certain Zp\mathbb{Z}_p-extension of FF.

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Cite

@article{arxiv.2406.08939,
  title  = {Generation of cyclotomic Hecke fields by $L$-values of cusp forms on $\mathrm{GL}(2)$ with certain $\mathbb{Z}_p$ twist},
  author = {Jaesung Kwon},
  journal= {arXiv preprint arXiv:2406.08939},
  year   = {2024}
}

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