English

Several homotopy fixed point spectral sequences in telescopically localized algebraic $K$-theory

Algebraic Topology 2023-02-28 v1 K-Theory and Homology

Abstract

Let n1n \geq 1, pp a prime, and T(n)T(n) any representative of the Bousfield class of the telescope vn1F(n)v_n^{-1}F(n) of a finite type nn complex. Also, let EnE_n be the Lubin-Tate spectrum, K(En)K(E_n) its algebraic KK-theory spectrum, and GnG_n the extended Morava stabilizer group, a profinite group. Motivated by an Ausoni-Rognes conjecture, we show that there are two spectral sequences I\mspace3muE2s,tπts((LT(n+1)K(En))hGn)II\mspace2muE2s,t{^{I}}\mspace{-3mu}E_2^{s,t} \Longrightarrow \pi_{t-s}((L_{T(n+1)}K(E_n))^{hG_n}) \Longleftarrow {^{II}}\mspace{-2mu}E_2^{s,t} with common abutment π()\pi_\ast(-) of the continuous homotopy fixed points of LT(n+1)K(En)L_{T(n+1)}K(E_n), where I\mspace3muE2s,t{^{I}}\mspace{-3mu}E_2^{s,t} is continuous cohomology with coefficients in a certain tower of discrete GnG_n-modules. If the tower satisfies the Mittag-Leffler condition, then there are continuous cochain cohomology groups I\mspace3muE2,Hcts(Gn,π(LT(n+1)K(En)))II\mspace2muE2,.{^{I}}\mspace{-3mu}E_2^{\ast,\ast} \cong H^\ast_\mathrm{cts}(G_n, \pi_\ast(L_{T(n+1)}K(E_n))) \cong {^{II}}\mspace{-2mu}E_2^{\ast,\ast}. We isolate two hypotheses, the first of which is true when (n,p)=(1,2)(n,p) = (1,2), that imply (LT(n+1)K(En))hGnLT(n+1)K(LK(n)S0)(L_{T(n+1)}K(E_n))^{hG_n} \simeq L_{T(n+1)}K(L_{K(n)}S^0). Also, we show that there is a spectral sequence Hctss(Gn,πt(K(En)T(n+1)))πts((K(En)T(n+1))hGn).H^s_\mathrm{cts}(G_n, \pi_t(K(E_n) \otimes T(n+1))) \Longrightarrow \pi_{t-s}((K(E_n) \otimes T(n+1))^{hG_n}).

Keywords

Cite

@article{arxiv.2302.13533,
  title  = {Several homotopy fixed point spectral sequences in telescopically localized algebraic $K$-theory},
  author = {Daniel G. Davis},
  journal= {arXiv preprint arXiv:2302.13533},
  year   = {2023}
}

Comments

18 pages, submitted for publication