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$\eta$-periodic motivic stable homotopy theory over Dedekind domains

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arxiv 2006.02086 v3 pith:GYQ7VUOX submitted 2020-06-03 math.KT math.AG

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keywords motivicdedekindschemescharacteristichomotopymixedperiodicstable
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abstract

We construct well-behaved extensions of the motivic spectra representing generalized motivic cohomology and connective Balmer--Witt K-theory (among others) to mixed characteristic Dedekind schemes on which 2 is invertible. As a consequence we lift the fundamental fiber sequence of $\eta$-periodic motivic stable homotopy theory established in [arxiv:2005.06778] from fields to arbitrary base schemes, and use this to determine (among other things) the $\eta$-periodized algebraic symplectic and SL-cobordism groups of mixed characteristic Dedekind schemes containing 1/2.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. $\mathbb{A}^1$-invariant motivic cohomology of schemes

    math.KT 2025-08 conditional novelty 8.0 of 10

    A new A1-invariant motivic cohomology for all qcqs schemes is constructed from the slice filtration of KGL, with a spectral sequence to homotopy K-theory and etale/syntomic comparisons.

  2. Unstable motivic and real-\'etale homotopy theory

    math.AG 2025-01 conditional novelty 8.0 of 10

    Real etale motivic homotopy theory over a scheme S is equivalent to sheaves of spaces on the real spectrum of S, and on pointed connected motivic spaces the real etale localization is the rho-telescope.

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