English

Toward the $p$-adic Hodge parameters in the potentially crystalline representations of $\mathrm{GL}_n$

Number Theory 2026-02-25 v1

Abstract

Let pp be a prime number, nn an integer 2\geq 2, and LL a finite extension of Qp\mathrm{Q}_p. Let ρL\rho_L be an nn-dimensional (non-critical but not necessary generic) potentially crystalline pp-adic Galois representation of the absolute Galois groups of LL of regular Hodge-Tate weights. By generalizing the previous results and strategy for the crystabelline case of Ding and the recent work of Breuil-Ding, we construct an explicit locally analytic representation π1(ρL)\pi_{1}(\rho_L), and describe explicitly the information of Hodge filtration of ρL\rho_L it determines. When ρL\rho_L comes from a patched pp-adic automorphic representation, we show that π1(ρL)\pi_{1}(\rho_L) is a subrepresentation of the GLn(L)\mathrm{GL}_n(L)-representation globally associated to ρL\rho_L, under some mild hypothesis.

Keywords

Cite

@article{arxiv.2602.21063,
  title  = {Toward the $p$-adic Hodge parameters in the potentially crystalline representations of $\mathrm{GL}_n$},
  author = {Yiqin He},
  journal= {arXiv preprint arXiv:2602.21063},
  year   = {2026}
}

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64 pages