Unstable $p$-completion in motivic homotopy theory

Fuente: arXiv
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1. Verfasser: Mattis, Klaus
Format: Preprint
Veröffentlicht: 2024
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author Mattis, Klaus
author_facet Mattis, Klaus
contents We define unstable $p$-completion in general $\infty$-topoi and the unstable motivic homotopy category, and prove that the $p$-completion of a nilpotent sheaf or motivic space can be computed on its Postnikov tower. We then show that the ($p$-completed) homotopy groups of the $p$-completion of a nilpotent motivic space $X$ fit into short exact sequences $0 \to \mathbb L_0 π_n(X) \to π_n^p(X_p^\wedge) \to \mathbb L_1 π_{n-1}(X) \to 0$, where the $\mathbb L_i$ are (versions of) the derived $p$-completion functors, analogous to the classical situation.
format Preprint
id arxiv_https___arxiv_org_abs_2401_17848
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Unstable $p$-completion in motivic homotopy theory
Mattis, Klaus
Algebraic Geometry
Algebraic Topology
We define unstable $p$-completion in general $\infty$-topoi and the unstable motivic homotopy category, and prove that the $p$-completion of a nilpotent sheaf or motivic space can be computed on its Postnikov tower. We then show that the ($p$-completed) homotopy groups of the $p$-completion of a nilpotent motivic space $X$ fit into short exact sequences $0 \to \mathbb L_0 π_n(X) \to π_n^p(X_p^\wedge) \to \mathbb L_1 π_{n-1}(X) \to 0$, where the $\mathbb L_i$ are (versions of) the derived $p$-completion functors, analogous to the classical situation.
title Unstable $p$-completion in motivic homotopy theory
topic Algebraic Geometry
Algebraic Topology
url https://arxiv.org/abs/2401.17848