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We compute the slice spectral sequence for the motivic stable homotopy groups of $L$, a motivic analogue of the connective $K(1)$-local sphere over prime fields of characteristic not two. Together with the analogous computation over…

Algebraic Topology · Mathematics 2023-11-07 Hana Jia Kong , J. D. Quigley

Many important theorems in differential topology relate properties of manifolds to properties of their underlying homotopy types -- defined e.g. using the total singular complex or the \v{C}ech nerve of a good open cover. Upon embedding the…

Algebraic Topology · Mathematics 2023-09-06 Adrian Clough

On a smooth projective variety over the complex numbers, there is the coniveau from the coniveau filtration, which is called geometric coniveau. On the same variety, there is another coniveau from the maximal sub-Hodge structure, which is…

Algebraic Geometry · Mathematics 2018-03-14 B. Wang

A new category of topological spaces with additional structures, called m-towers, is introduced. It is shown that there is a covariant functor which establishes a one-to-one correspondences between unital (resp. arbitrary) subhomogeneous…

Operator Algebras · Mathematics 2013-10-22 Piotr Niemiec

We prove that algebraic K-theory, topological Hochschild homology and topological cyclic homology satisfy cubical and cosimplicial descent at connective structured ring spectra along 1-connected maps of such ring spectra.

Algebraic Topology · Mathematics 2022-06-22 Bjørn I. Dundas , John Rognes

A rigidity property for the homotopy invariant stable linear framed presheaves is established. As a consequence a variant of Gabber rigidity theorem is obtained for a cohomology theory representable in the motivic stable homotopy category…

K-Theory and Homology · Mathematics 2018-04-04 Alexey Ananyevskiy , Andrei Druzhinin

We compute the 1-line of stable homotopy groups of motivic spheres over fields of characteristic not two in terms of hermitian and Milnor K-groups. This is achieved by solving questions about convergence and differentials in the slice…

Algebraic Topology · Mathematics 2018-08-15 Oliver Röndigs , Markus Spitzweck , Paul Arne Østvær

Using the theory of framed correspondences developed by Voevodsky, we introduce and study framed motives of algebraic varieties. They are the major computational tool for constructing an explicit quasi-fibrant motivic replacement of the…

K-Theory and Homology · Mathematics 2018-02-13 Grigory Garkusha , Ivan Panin

Quillen's algebraic K-theory is reconstructed via Voevodsky's algebraic cobordism. More precisely, for a ground field k the algebraic cobordism P^1-spectrum MGL of Voevodsky is considered as a commutative P^1-ring spectrum. There is a…

Algebraic Geometry · Mathematics 2009-11-13 I. Panin , K. Pimenov , O. Röndigs

Grothendieck first defined the notion of a "motif" as a way of finding a universal cohomology theory for algebraic varieties. Although this program has not been realized, Voevodsky has constructed a triangulated category of geometric…

Algebraic Geometry · Mathematics 2010-07-13 Anandam Banerjee

We introduce the notion of a strongly homotopy-comultiplicative resolution of a module coalgebra over a chain Hopf algebra, which we apply to proving a comultiplicative enrichment of a well-known theorem of Moore concerning the homology of…

Algebraic Topology · Mathematics 2011-11-04 Kathryn Hess

We reconcile the multiplications on the homotopy rings of motivic ring spectra used by Voevodsky and Dugger. While the connection is elementary and similar phenomena have been observed in situations like supersymmetry, neither we nor other…

Algebraic Geometry · Mathematics 2024-07-10 Daniel Dugger , Bjørn Ian Dundas , Daniel C. Isaksen , Paul Arne Østvær

In homotopy type theory (HoTT), all constructions are necessarily stable under homotopy equivalence. This has shortcomings: for example, it is believed that it is impossible to define a type of semi-simplicial types. More generally, it is…

Logic in Computer Science · Computer Science 2016-11-01 Thorsten Altenkirch , Paolo Capriotti , Nicolai Kraus

We develop a rigidity criterion to show that in simplicial model categories with a compatible symmetric monoidal structure, operad structures can be automatically lifted along certain maps. This is applied to obtain an unpublished result of…

Algebraic Topology · Mathematics 2014-11-11 Daniel G. Davis , Tyler Lawson

For every stable presentably symmetric monoidal $\infty$-category $\mathcal{C}$ we use the Koszul duality between the spectral Lie operad and the cocommutative cooperad to construct an enveloping Hopf algebra functor $\mathcal{U}:…

Algebraic Topology · Mathematics 2025-08-08 Hadrian Heine

Given a small simplicial category $\C$ whose underlying ordinary category is equipped with a Grothendieck topology $\tau$, we construct a model structure on the category of simplicially enriched presheaves on $\C$ where the weak…

Algebraic Topology · Mathematics 2018-11-20 Georgios Raptis , Florian Strunk

We study the spectral sequence that one obtains by applying mod 2 homology to the Goodwillie tower which sends a spectrum X to the suspension spectrum of its 0th space X_0. This converges strongly to H_*(X_0) when X is 0-connected. The E^1…

Algebraic Topology · Mathematics 2014-10-01 Nicholas J. Kuhn , Jason B. McCarty

In this paper, we show that Goodwillie calculus, as applied to functors from stable homotopy to itself, interacts in striking ways with chromatic aspects of the stable category. Localized at a fixed prime p, let T(n) be the telescope of a…

Algebraic Topology · Mathematics 2015-06-26 Nicholas J. Kuhn

A general notion of detection is introduced and used in the study of the cohomology of elementary abelian 2-groups with respect to the spectra in the Postnikov tower of orthogonal K-theory. This recovers and extends results of Bruner and…

Algebraic Topology · Mathematics 2014-11-26 Geoffrey Powell

The primary goal of this paper is to find a homotopy theoretic approximation to moduli spaces of holomorphic maps Riemann surfaces into complex projective space. There is a similar treatment of a partial compactification of these moduli…

Algebraic Topology · Mathematics 2017-12-19 David Ayala