On the rationalization of the $K(n)$-local sphere

Fuente: arXiv
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Autori principali: Barthel, Tobias, Schlank, Tomer M., Stapleton, Nathaniel, Weinstein, Jared
Natura: Preprint
Pubblicazione: 2024
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author Barthel, Tobias
Schlank, Tomer M.
Stapleton, Nathaniel
Weinstein, Jared
author_facet Barthel, Tobias
Schlank, Tomer M.
Stapleton, Nathaniel
Weinstein, Jared
contents We compute the rational homotopy groups of the $K(n)$-local sphere for all heights $n$ and all primes $p$, verifying a prediction that goes back to the pioneering work of Morava in the early 1970s. More precisely, we show that the inclusion of the Witt vectors into the Lubin-Tate ring induces a split injection on continuous stabilizer cohomology with torsion cokernel of bounded exponent, thereby proving Hopkins' chromatic splitting conjecture and the vanishing conjecture of Beaudry-Goerss-Henn rationally. The key ingredients are the equivalence between the Lubin-Tate tower and the Drinfeld tower due to Faltings and Scholze-Weinstein, integral $p$-adic Hodge theory, and an integral refinement of a theorem of Tate on the Galois cohomology of non-archimedean fields.
format Preprint
id arxiv_https___arxiv_org_abs_2402_00960
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle On the rationalization of the $K(n)$-local sphere
Barthel, Tobias
Schlank, Tomer M.
Stapleton, Nathaniel
Weinstein, Jared
Algebraic Topology
Algebraic Geometry
Number Theory
55Q45, 14G22
We compute the rational homotopy groups of the $K(n)$-local sphere for all heights $n$ and all primes $p$, verifying a prediction that goes back to the pioneering work of Morava in the early 1970s. More precisely, we show that the inclusion of the Witt vectors into the Lubin-Tate ring induces a split injection on continuous stabilizer cohomology with torsion cokernel of bounded exponent, thereby proving Hopkins' chromatic splitting conjecture and the vanishing conjecture of Beaudry-Goerss-Henn rationally. The key ingredients are the equivalence between the Lubin-Tate tower and the Drinfeld tower due to Faltings and Scholze-Weinstein, integral $p$-adic Hodge theory, and an integral refinement of a theorem of Tate on the Galois cohomology of non-archimedean fields.
title On the rationalization of the $K(n)$-local sphere
topic Algebraic Topology
Algebraic Geometry
Number Theory
55Q45, 14G22
url https://arxiv.org/abs/2402.00960