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arXiv · 2608.06209

Representability of continuous K-theory in rigid analytic motivic $\mathbb{A}^1$-homotopy theory

Christian Dahlhausen·Can Yaylali·Yicheng Zhou
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Abstract

We prove that both continuous K-theory and analytic K-theory of rigid analytic spaces (\`a la Kerz--Saito--Tamme) satisfiy descent with respect to the Nisnevich topology. Together with the fact that it is $\mathbb{A}^1$-invariant assuming resolutions of singularities, we deduce that it is representable in the $\mathbb{A}^{1}$-homotopy category of rigid spaces (\`a la Dahlhausen--Yaylali). We identifiy the representing object with both $\mathbb{Z}\times\mathrm{BGL}$ and the analytification of algebraic K-theory. As a consequence, we get a representability statement for coefficients in light condensed spectra. Moreover, we show Weibel vanishing and that continuous K-theory is $\mathbb{A}^1$-invariant on local Tate pairs (without any regularity assumption).

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Christian Dahlhausen, Can Yaylali, Yicheng Zhou. 2026-08-06. Representability of continuous K-theory in rigid analytic motivic $\mathbb{A}^1$-homotopy theory. https://arxiv.org/abs/2608.06209

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