activity
20192026
collaborators

7 papers

math.KT2026

Representability of continuous K-theory in rigid analytic motivic -homotopy theory

Christian Dahlhausen, Can Yaylali, Yicheng Zhou

We prove that both continuous K-theory and analytic K-theory of rigid analytic spaces (à la Kerz--Saito--Tamme) satisfiy descent with respect to the Nisnevich topology. Together wi…

math.AG2025

Motivic homotopy theory for perfect schemes

Christian Dahlhausen, Jeroen Hekking, Storm Wolters

We construct a perfect version of Morel--Voevodsky's motivic homotopy category over a perfect base scheme in positive characteristic. By checking the axioms of a coefficient system…

math.KT2025

Duality for KGL-modules in motivic homotopy theory

Christian Dahlhausen, Jeroen Hekking, Storm Wolters

We prove a duality statement on modules over KH-theory in the stable motivic homotopy category whose dualizing object is given by G-theory, over any quasi-excellent scheme of chara…

math.AT2024

Towards -homotopy theory of rigid analytic spaces

Christian Dahlhausen, Can Yaylali

To any rigid analytic space (in the sense of Fujiwara--Kato) we assign an -invariant rigid analytic homotopy category with coefficients in any presentable category. W…

math.KT2024

Regularity of semi-valuation rings and homotopy invariance of algebraic K-theory

Christian Dahlhausen

We show that the algebraic K-theory of semi-valuation rings with stably coherent regular semi-fraction ring satisfies homotopy invariance. Moreover, we show that these rings are re…

math.KT2021

K-theory of admissible Zariski-Riemann spaces

Christian Dahlhausen

We study relative algebraic K-theory of admissible Zariski-Riemann spaces and prove that it is equivalent to G-theory and satisfies homotopy invariance. Moreover, we provide an exa…