A new inductive proof shows the category of K(n)-local spectra is ∞-semiadditive, replacing the Ravenel-Wilson computation with K-theory, redshift and the chromatic nullstellensatz.
Schlank, and Lior Yanovski
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Chromatic Higher Semiadditivity by Height Induction
A new inductive proof shows the category of K(n)-local spectra is ∞-semiadditive, replacing the Ravenel-Wilson computation with K-theory, redshift and the chromatic nullstellensatz.