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arXiv · 1904.08644

Relative $\mathbb{A}^1$-homology and its applications

Yuri Shimizu
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Abstract

In this paper, we prove an $\mathbb{A}^1$-homology version of the Whitehead theorem with dimension bound. We also prove an excision theorem for $\mathbb{A}^1$-homology, Suslin homology and $\mathbb{A}^1$-homotopy sheaves. In order to prove these results, we develop a general theory of relative $\mathbb{A}^1$-homology and $\mathbb{A}^1$-homotopy sheaves. As an application, we compute the relative $\mathbb{A}^1$-homology of a hyperplane embedding $\mathbb{P}^{n-1} \hookrightarrow \mathbb{P}^{n}$.

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Yuri Shimizu. 2019-04-18. Relative $\mathbb{A}^1$-homology and its applications. https://arxiv.org/abs/1904.08644

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