English

Splitting and making explicit the de Rham complex of the Drinfeld space

Number Theory 2026-01-26 v3 Representation Theory

Abstract

Let pp be a prime number, KK a finite extension of Qp\mathbb{Q}_p and nn an integer 2\geq 2. We completely and explicitly describe the global sections Ω\Omega^\bullet of the de Rham complex of the Drinfeld space over KK in dimension n1n-1 as a complex of (duals of) locally KK-analytic representations of GLn(K)\mathrm{GL}_n(K). Using this description, we construct an explicit section in the derived category of (duals of) finite length admissible locally KK-analytic representations of GLn(K)\mathrm{GL}_n(K) to the canonical morphism of complexes ΩHn1(Ω)[(n1)]\Omega^\bullet \twoheadrightarrow H^{n-1}(\Omega^\bullet)[-(n-1)].

Keywords

Cite

@article{arxiv.2407.06651,
  title  = {Splitting and making explicit the de Rham complex of the Drinfeld space},
  author = {Christophe Breuil and Zicheng Qian},
  journal= {arXiv preprint arXiv:2407.06651},
  year   = {2026}
}

Comments

289 pages, 13 figures. Minor modifications after the referee report, including an correction in the title