English

Two-complete stable motivic stems over finite fields

Algebraic Topology 2017-03-22 v2

Abstract

Let \ell be a prime and q=pνq = p^{\nu} where pp is a prime different from \ell. We show that the \ell-completion of the nnth stable homotopy group of spheres is a summand of the \ell-completion of the (n,0)(n, 0) motivic stable homotopy group of spheres over the finite field with qq elements FqF_q. With this, and assisted by computer calculations, we are able to explicitly compute the two-complete stable motivic stems πn,0(Fq)2\pi_{n, 0}(F_q)^{\wedge}_2 for 0n180\leq n\leq 18. Additionally, we compute π19,0(Fq)2\pi_{19, 0}(F_q)^{\wedge}_2 and π20,0(Fq)2\pi_{20, 0}(F_q)^{\wedge}_2 when q1mod4q \equiv 1 \bmod 4 assuming Morel's connectivity theorem for FqF_q holds.

Cite

@article{arxiv.1601.06398,
  title  = {Two-complete stable motivic stems over finite fields},
  author = {Glen M. Wilson and Paul Arne Østvær},
  journal= {arXiv preprint arXiv:1601.06398},
  year   = {2017}
}

Comments

4 figures, 2 tables. Published version now available

R2 v1 2026-06-22T12:35:38.181Z