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arXiv 2006.02086math.KTmath.AG
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戴德金整环上的$η$ -周期运动稳定同伦理论

$η$-periodic motivic stable homotopy theory over Dedekind domains

Tom Bachmann

摘要:

我们构造良好的扩展的动机谱代表广义动机上同调和连接的Balmer-Witt K-理论(除其他外)的混合特征Dedekind计划2是可逆的。因此,我们将[arxiv:2005.06778]中建立的$η$ -周期运动稳定同伦理论的基本纤维序列从域提升到任意基方案,并利用它来确定(除其他外)包含1/2的混合特征Dedekind方案的$η$ -周期化代数辛和SL-配边群.

英文摘要:

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 $η$-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 $η$-periodized algebraic symplectic and SL-cobordism groups of mixed characteristic Dedekind schemes containing 1/2.

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