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fwedge_prespectrum

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spiceghello 2017-06-09 11:51:04 -06:00
parent 88dc53d113
commit 2e55a4a4ef
1 changed files with 13 additions and 1 deletions
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homotopy/spectrum.hlean
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@ -5,7 +5,7 @@ Authors: Michael Shulman, Floris van Doorn
-/
import homotopy.LES_of_homotopy_groups .splice ..colim types.pointed2 .EM ..pointed_pi .smash_adjoint ..algebra.seq_colim
import homotopy.LES_of_homotopy_groups .splice ..colim types.pointed2 .EM ..pointed_pi .smash_adjoint ..algebra.seq_colim .fwedge
open eq nat int susp pointed pmap sigma is_equiv equiv fiber algebra trunc trunc_index pi group
seq_colim succ_str EM EM.ops function
@ -593,5 +593,17 @@ spectrify_fun (smash_prespectrum_fun f g)
definition EM_spectrum /-[constructor]-/ (G : AbGroup) : spectrum :=
spectrum.Mk (K G) (λn, (loop_EM G n)⁻¹ᵉ*)
/- Wedge of prespectra -/
open fwedge
definition fwedge_prespectrum.{u v} {I : Type.{v}} (X : I -> prespectrum.{u}) : prespectrum.{max u v} :=
begin
fconstructor,
{ intro n, exact fwedge (λ i, X i n) },
{ intro n, fapply fwedge_pmap,
intro i, exact Ω→ !pinl ∘* !glue
}
end
end spectrum