English

Localizing the $E_2$ page of the Adams spectral sequence

Algebraic Topology 2020-07-29 v1

Abstract

There is only one nontrivial localization of πS(p)\pi_*S_{(p)} (the chromatic localization at v0=pv_0=p), but there are infinitely many nontrivial localizations of the Adams E2E_2 page for the sphere. The first non-nilpotent element in the E2E_2 page after v0v_0 is b10ExtA2p(p1)2(Fp,Fp)b_{10}\in \mathrm{Ext}_A^{2p(p-1)-2}(\mathbb{F}_p,\mathbb{F}_p). We work at p=3p=3 and study b101ExtP(F3,F3)b_{10}^{-1}\mathrm{Ext}_P(\mathbb{F}_3,\mathbb{F}_3) (where PP is the algebra of dual reduced powers), which agrees with the infinite summand ExtP(F3,F3)\mathrm{Ext}_P(\mathbb{F}_3,\mathbb{F}_3) of ExtA(F3,F3)\mathrm{Ext}_A(\mathbb{F}_3,\mathbb{F}_3) above a line of slope 123{1\over 23}. We compute up to the E9E_9 page of an Adams spectral sequence in the category Stable(P)\mathrm{Stable}(P) converging to b101ExtP(F3,F3)b_{10}^{-1}\mathrm{Ext}_P(\mathbb{F}_3,\mathbb{F}_3), and conjecture that the spectral sequence collapses at E9E_9. We also give a complete calculation of b101ExtP(F3,F3[ξ13])b_{10}^{-1}\mathrm{Ext}_P^*(\mathbb{F}_3,\mathbb{F}_3[\xi_1^3]).

Cite

@article{arxiv.1901.03787,
  title  = {Localizing the $E_2$ page of the Adams spectral sequence},
  author = {Eva Belmont},
  journal= {arXiv preprint arXiv:1901.03787},
  year   = {2020}
}
R2 v1 2026-06-23T07:09:34.392Z