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Finite generation for the K(n)-local sphere
expertly designed by an internal OpenAI model  ·  released 2026-09-24  ·  original PDF
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How to play: We prove that the homotopy groups of the $K(n)$-local sphere are finitely generated ℤp-modules in every integer degree, for every prime p and positive height n. Equivalently, the same conclusion holds after $K(n)$-localizing any finite p-local spectrum. This answers the degreewise finiteness question of Hovey and Hovey–Strickland.

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