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arXiv 1002.2368math.ATmath.KT
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动机联结K-理论与A(1)的上同调

Motivic connective K-theories and the cohomology of A(1)

Daniel C. Isaksen, Armira Shkembi

摘要:

我们在Spec \mathbb{C}上用稳定的动机同伦理论进行了一些计算,完成于2。利用同伦不动点和代数K理论谱,我们构造了实K理论谱KO的一个运动模拟.我们还建立了一个连接覆盖理论,以获得一个动机版本的ko。我们建立了一个用于计算动机同调的Adams谱序列。这个谱序列的E_2-项涉及到原Steenrod代数的子代数A(1)上的Ext群。在一些有趣的特殊情况下,我们对这些E_2-项进行了一些显式计算。

英文摘要:

We make some computations in stable motivic homotopy theory over Spec \mathbb{C}, completed at 2. Using homotopy fixed points and the algebraic K-theory spectrum, we construct a motivic analogue of the real K-theory spectrum KO. We also establish a theory of connective covers to obtain a motivic version of ko. We establish an Adams spectral sequence for computing motivic ko-homology. The E_2-term of this spectral sequence involves Ext groups over the subalgebra A(1) of the motivic Steenrod algebra. We make several explicit computations of these E_2-terms in interesting special cases.

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