Every motive is the motive of a stable $\infty$-category

Fuente: arXiv
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Main Authors: Ramzi, Maxime, Sosnilo, Vladimir, Winges, Christoph
Format: Preprint
Published: 2025
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author Ramzi, Maxime
Sosnilo, Vladimir
Winges, Christoph
author_facet Ramzi, Maxime
Sosnilo, Vladimir
Winges, Christoph
contents We define a class of motivic equivalences of small stable $\infty$-categories $W_{\mathrm{mot}}$ and show that the Dwyer--Kan localization functor $\mathrm{Cat}^{\mathrm{perf}}_\infty \to \mathrm{Cat}^{\mathrm{perf}}_\infty[W_{\mathrm{mot}}^{-1}]$ is the universal localizing invariant in the sense of Blumberg--Gepner--Tabuada. In particular, we show that every object in its target $\mathcal{M}_{\mathrm{loc}}$ can be represented as $\mathcal{U}_{\mathrm{loc}}(\mathcal{C})$ for some small stable $\infty$-category $\mathcal{C}$. As another consequence, and using work of Efimov, we improve the universal property of $\mathcal{M}_{\mathrm{loc}}$ and show that any $\aleph_1$-finitary localizing invariant factors uniquely through it.
format Preprint
id arxiv_https___arxiv_org_abs_2503_11338
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Every motive is the motive of a stable $\infty$-category
Ramzi, Maxime
Sosnilo, Vladimir
Winges, Christoph
K-Theory and Homology
Algebraic Topology
Category Theory
We define a class of motivic equivalences of small stable $\infty$-categories $W_{\mathrm{mot}}$ and show that the Dwyer--Kan localization functor $\mathrm{Cat}^{\mathrm{perf}}_\infty \to \mathrm{Cat}^{\mathrm{perf}}_\infty[W_{\mathrm{mot}}^{-1}]$ is the universal localizing invariant in the sense of Blumberg--Gepner--Tabuada. In particular, we show that every object in its target $\mathcal{M}_{\mathrm{loc}}$ can be represented as $\mathcal{U}_{\mathrm{loc}}(\mathcal{C})$ for some small stable $\infty$-category $\mathcal{C}$. As another consequence, and using work of Efimov, we improve the universal property of $\mathcal{M}_{\mathrm{loc}}$ and show that any $\aleph_1$-finitary localizing invariant factors uniquely through it.
title Every motive is the motive of a stable $\infty$-category
topic K-Theory and Homology
Algebraic Topology
Category Theory
url https://arxiv.org/abs/2503.11338