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Related papers: K-theory of admissible Zariski-Riemann spaces

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We establish connections between the concepts of Noetherian, regular coherent, and regular n-coherent categories for Z-linear categories with finitely many objects and the corresponding notions for unital rings. These connections enable us…

K-Theory and Homology · Mathematics 2023-11-01 Eugenia Ellis , Rafael Parra

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 regular if their valuation is non-trivial. Thus they yield…

K-Theory and Homology · Mathematics 2025-09-08 Christian Dahlhausen

We show that the homotopy invariant algebraic K-theory of Weibel vanishes below the negative of the Krull dimension of a noetherian scheme. This gives evidence for a conjecture of Weibel about vanishing of negative algebraic K-groups.

Algebraic Geometry · Mathematics 2016-12-21 Moritz Kerz , Florian Strunk

We establish a connection between continuous K-theory and integral cohomology of rigid spaces. Given a rigid analytic space over a complete discretely valued field, its continuous K-groups vanish in degrees below the negative of the…

K-Theory and Homology · Mathematics 2024-03-05 Christian Dahlhausen

Let R be an associative ring with identity. We study an elementary generalization of the classical Zariski topology, applied to the set of isomorphism classes of simple left R-modules (or, more generally, simple objects in a complete…

Rings and Algebras · Mathematics 2007-05-23 Edward S. Letzter

In this paper we introduce a homotopy theoretic technique for proving that the $K$-theoretic assembly map is an equivalence. It is an extension of the methods used to prove split injectivity of the assembly and applies to any geometrically…

Algebraic Topology · Mathematics 2026-01-19 Gunnar Carlsson , Boris Goldfarb

We show that if two rings have equivalent derived categories then they have the same algebraic K-theory. Similar results are given for G-theory, and for a large class of abelian categories.

K-Theory and Homology · Mathematics 2007-05-23 Daniel Dugger , Brooke Shipley

We introduce bivariant K-theory for nonarchimedean bornological algebras over a complete discrete valuation ring $V$. This is the universal target for dagger homotopy invariant, matricially stable and excisive functors, similar to bivariant…

K-Theory and Homology · Mathematics 2023-07-06 Devarshi Mukherjee

In this paper we identify the ``nil-terms'' for Waldhausen's algebraic K-theory of spaces functor as the reduced K-theory of a category of equivariant spaces equipped with a homotopically nilpotent endomorphism.

K-Theory and Homology · Mathematics 2007-05-23 John R. Klein , Edward Bruce Williams

In this article, we study the relative negative K-groups $K_{-n}(f)$ of a map $f: X \to S $ of schemes. We prove a relative version of the Weibel conjecture i.e. if $f: X \to S$ is a smooth affine map of noetherian schemes with $\dim S=d$…

Algebraic Geometry · Mathematics 2019-06-18 Vivek Sadhu

Equivalence classes of gapped Hamiltonians compatible with given symmetry constraints, such as those underlying topological insulators, can be defined in many ways. For the non-chiral classes modelled by vector bundles over Brillouin tori,…

Mathematical Physics · Physics 2015-10-13 Guo Chuan Thiang

We consider functors from the category of locally convex algebras to abelian groups and prove invariance under smooth homotopies for weakly J-stable algebras, where J is a harmonic operator ideal. This applies in particular to negative…

K-Theory and Homology · Mathematics 2007-05-23 Joachim Cuntz , Andreas Thom

We introduce a variant of homotopy K-theory for Tate rings, which we call analytic K-theory. It is homotopy invariant with respect to the analytic affine line viewed as an ind-object of closed disks of increasing radii. Under a certain…

K-Theory and Homology · Mathematics 2019-09-16 Moritz Kerz , Shuji Saito , Georg Tamme

We decompose the K-theory space of a Waldhausen category in terms of its Dwyer-Kan simplicial localization. This leads to a criterion for functors to induce equivalences of K-theory spectra that generalizes and explains many of the criteria…

K-Theory and Homology · Mathematics 2011-08-09 Andrew J. Blumberg , Michael A. Mandell

We prove that the homotopy algebraic K-theory of tame quasi-DM stacks satisfies cdh-descent. We apply this descent result to prove that if X is a Noetherian tame quasi-DM stack and i < -dim(X), then K_i(X)[1/n] = 0 (resp. K_i(X, Z/n) = 0)…

K-Theory and Homology · Mathematics 2019-12-18 Marc Hoyois , Amalendu Krishna

We prove that algebraic K-theory satisfies `pro-descent' for abstract blow-up squares of noetherian schemes. As an application we derive Weibel's conjecture on the vanishing of negative K-groups.

K-Theory and Homology · Mathematics 2018-02-08 Moritz Kerz , Florian Strunk , Georg Tamme

We define an unstable equivariant motivic homotopy category for an algebraic group over a Noetherian base scheme. We show that equivariant algebraic $K$-theory is representable in the resulting homotopy category. Additionally, we establish…

Algebraic Topology · Mathematics 2015-10-19 Jeremiah Heller , Amalendu Krishna , Paul Arne Ostvaer

In this note, we show that the algebraic K-theory of generalized archimedean valuation rings occurring in Durov's compactification of the spectrum of a number ring is given by stable homotopy groups of certain classifying spaces. We also…

K-Theory and Homology · Mathematics 2014-06-06 Jakob Scholbach

We show that if X is a toric scheme over a regular ring containing a field then the direct limit of the K-groups of X taken over any infinite sequence of nontrivial dilations is homotopy invariant. This theorem was known in characteristic…

K-Theory and Homology · Mathematics 2014-02-26 Guillermo Cortiñas , Christian Haesemeyer , Mark E. Walker , Charles A. Weibel

We prove a non-linear version of a theorem of Grayson which is an analogue of the Fundamental Theorem of Algebraic $K$-theory and identify the $K$-theory of the endomorphism category over a space $X$ in terms of reduced $K$-theory of a…

K-Theory and Homology · Mathematics 2015-11-30 Filipp Levikov
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