English

Locally analytic vectors in the completed cohomology of quaternionic Shimura curves

Number Theory 2026-01-21 v1 Representation Theory

Abstract

We use the methods introduced by Lue Pan to study the locally analytic vectors of the completed cohomology of Shimura curves associated to an indefinite quaternion algebra DD which is ramified at a prime number pp. Let Dp×D_p^{\times} be the group of units of DD at pp. Using pp-adic uniformization of the quaternionic Shimura curves, we compute the Hecke eigenspace of the completed cohomology with the Hecke eigenvalues associated to a classical automorphic form on another quaternion algebra Dˉ\bar D (switching invariants of DD at p,p,\infty). We present this locally analytic Dp×D_p^\times-representation using the de Rham complex of the Lubin-Tate tower of dimension 11. This is analogous to the Breuil-Strauch conjecture for the group GL2(Qp)\mathrm{GL}_2(\mathbb{Q}_p). We show that the locally analytic Dp×D_p^{\times}-representation does not detect the Hodge filtration of the local de Rham Galois representation at pp in the crystalline case, and also give applications for the locally analytic Jacquet--Langlands correspondence for GL2(Qp)\mathrm{GL}_2(\mathbb{Q}_p) and Dp×D_p^\times.

Keywords

Cite

@article{arxiv.2601.13625,
  title  = {Locally analytic vectors in the completed cohomology of quaternionic Shimura curves},
  author = {Zhenghui Li and Benchao Su and Zhixiang Wu},
  journal= {arXiv preprint arXiv:2601.13625},
  year   = {2026}
}

Comments

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