Journal
COMPOSITIO MATHEMATICA
Volume 155, Issue 1, Pages 38-88Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1112/S0010437X18007595
Keywords
rigid analytic geometry; motives; perfectoid spaces
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We establish a tilting equivalence for rational, homotopy-invariant cohomology theories de fi ned over non-archimedean analytic varieties. More precisely, we prove an equivalence between the categories of motives of rigid analytic varieties over a perfectoid fi eld K of mixed characteristic and over the associated (tilted) perfectoid fi eld K-b of equal characteristic. This can be considered as a motivic generalization of a theorem of Fontaine and Wintenberger, claiming that the Galois groups of K and K-b are isomorphic.
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