Homemath.AGarXiv:2605.29947

Lift-independence problem in the $P$-adic Simpson correspondence for curves

math.AGmath.NT2026-05v1license

Abstract

Let XX be a proper smooth rigid analytic variety over a complete algebraically closed field pp-adic field C\mathbf C. Fix an continuation Exp\mathrm{Exp}. Faltings (in the curve case) and Heuer showed that any lifting X~\widetilde X of XX over BdR+/t2\mathbf{B}_{\rm dR}^+/t^2 induces an equivalence bewteen the category of Higgs bundles on XeˊtX_{\mathrm{\acute{e}t}} and the category of vv-bundles on XvX_v. In this paper, we aim to study how the equivalence depends on the choice of such a lifting X~\widetilde X when XX is a curve of genus g2g\geqslant 2. More precisely, we call a Higgs bundle lift-independent if it always corresponds to the same vv-bundle under pp-adic Simpson correspondence with respect to any lifting X~\widetilde X and then we will show that (1) There exists some r(g)g1r(g)\geqslant \sqrt{g-1} such that any semistable Hitchin-small Higgs bundle of rank rr(g)r\leqslant r(g) is lift-independent. (2) There always exists a semistable Higgs bundle of degree 00 with non-zero Higgs field that is lift-independent.

Comments: 28 pages. Comments are welcome!

Cite

@article{arxiv.2605.29947,
  title  = {Lift-independence problem in the $P$-adic Simpson correspondence for curves},
  author = {Xiangyu Pan and Jiahong Yu},
  journal= {arXiv preprint arXiv:2605.29947},
  year   = {2026}
}