Galois descent conjecture for topological restriction homology

Let KK be a field with valuation ring VV, residue field kk, and let Kˉ\bar{K} be an algebraic closure of KK with Galois group GKG_K. Let Vˉ\bar{V} be the integral closure of VV in Kˉ\bar{K}. Assume that kk is perfect. Galois descent conjecture. For all q>0q>0, the canonical map

TRq(VK;p,Qp/Zp)TRq(VˉKˉ;p,Qp/Zp)GK\operatorname{TR}_q^{\,\boldsymbol{\cdot}}(V|K;p,\mathbb{Q}_p/\mathbb{Z}_p) \to \operatorname{TR}_q^{\,\boldsymbol{\cdot}}(\bar{V}|\bar{K};p,\mathbb{Q}_p/\mathbb{Z}_p)^{G_K}

is an isomorphism of pro-abelian groups, and

Hconti(GK,TRqn(VˉKˉ;p,Qp/Zp))=0H_{\operatorname{cont}}^i(G_K,\operatorname{TR}_q^n(\bar{V}|\bar{K};p,\mathbb{Q}_p/\mathbb{Z}_p))=0

for all higher continuous cohomological degrees ii. This predicts Galois descent for the relevant topological restriction homology groups and the vanishing of the higher obstruction groups; its resolution is not specified in the source.

Sources & referencesView supporting material

Primary source

Lars Hesselholt, “Algebraic K-theory and trace invariants”, arXiv:math/0304297 (2003).

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