English

A Weight Structure on Rigid Analytic Motives over a Field

Algebraic Geometry 2025-09-23 v1 Number Theory

Abstract

In this paper, we construct a monoidal weight structure on the stable \infty-category of rigid analytic motives over a local field KK via Galois descent. This extends the weight structure on the full subcategory of rigid analytic motives with good reduction, which is defined by Binda-Gallauer-Vezzani. As an application, we show that the Hyodo-Kato realization factors through the weight complex functor studied by Bondarko and Sosnilo. In particular, the weight complex yields a spectral sequence converging to the Hyodo-Kato cohomology of smooth quasi-compact KK-rigid analytic spaces, thereby inducing a weight filtration on it.

Cite

@article{arxiv.2509.16683,
  title  = {A Weight Structure on Rigid Analytic Motives over a Field},
  author = {Kaixing Cao},
  journal= {arXiv preprint arXiv:2509.16683},
  year   = {2025}
}

Comments

38 pages

R2 v1 2026-07-01T05:47:18.067Z