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Related papers: Nilpotence in normed MGL-modules

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Let S be an essentially smooth scheme over a field and l a prime number invertible on S. We show that the algebra of bistable operations in the mod l motivic cohomology of smooth S-schemes is generated by the motivic Steenrod operations.…

Algebraic Geometry · Mathematics 2013-08-01 Marc Hoyois , Shane Kelly , Paul Arne Østvær

The condition of nilpotency is studied in the general linear Lie algebra $\mathfrak{gl}_{n}(\mathbb{K})$ and the symplectic Lie algebra $\mathfrak{sp}_{2m}(\mathbb{K})$ over an algebraically closed field of characteristic 0. In particular,…

Algebraic Geometry · Mathematics 2014-03-14 Samuel Reid

We consider modules E over a C*-algebra A which are equipped with a map into A_+ that has the formal properties of a norm. We completely determine the structure of these modules. In particular, we show that if A has no nonzero commutative…

funct-an · Mathematics 2008-02-03 N. C. Phillips , N. Weaver

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 characteristic zero.

K-Theory and Homology · Mathematics 2025-08-04 Christian Dahlhausen , Jeroen Hekking , Storm Wolters

We use motivic colimits to construct power operations on the homotopy groups of normed motivic spectra admitting a (normed) map from HF_2. We establish enough of their standard properties to prove that the motivic dual Steenrod algebra is…

K-Theory and Homology · Mathematics 2022-10-14 Tom Bachmann , Elden Elmanto , Jeremiah Heller

We define a motivic Greenlees spectral sequence by characterising an associated $t$-structure. We then examine a motivic version of topological Hochschild homology for the motivic cohomology spectrum modulo a prime number $p$. Finally, we…

Algebraic Topology · Mathematics 2024-08-02 Federico Ernesto Mocchetti

We prove that in the graded commutative ring $K_{*}(\mathbb{S})$, all positive degree elements are multiplicatively nilpotent. The analogous statements also hold for $TC_{*}(\mathbb{S};\mathbb{Z}^{\wedge}_p)$ and $K_{*}(\mathbb{Z})$.

K-Theory and Homology · Mathematics 2018-03-16 Andrew J. Blumberg , Michael A. Mandell

We propose a formulation of the Equivariant Tamagawa Number Conjecture for modular motives with coefficients in universal deformation rings and Hecke algebras; something which seems to have been heretofore missing because the complexes of…

Number Theory · Mathematics 2014-04-25 Olivier Fouquet

We show that Shipley's "detection functor" for symmetric spectra generalizes to motivic symmetric spectra. As an application, we construct motivic strict ring spectra representing morphic cohomology, semi-topological $K$-theory, and…

Algebraic Geometry · Mathematics 2013-04-24 Jeremiah Heller

It is shown that any finite-dimensional homomorphic image of an inverse limit of nilpotent not-necessarily-associative algebras over a field is nilpotent. More generally, this is true of algebras over a general commutative ring k, with…

Rings and Algebras · Mathematics 2021-10-15 George M. Bergman

We propose an action of a certain motivic cohomology group on the coherent cohomology of Hilbert modular varieties, extending conjectures of Venkatesh, Prasanna, and Harris. The action is described in two ways: on cohomology modulo $p$ and…

Number Theory · Mathematics 2022-06-07 Aleksander Horawa

We construct algebraic cobordism spectra MSL and MSp. They are commutative monoids in the category of symmetric T^{2}- spectra. The spectrum MSp comes with a natural symplectic orientation given either by a tautological Thom class th^{MSp}…

Algebraic Geometry · Mathematics 2018-03-13 Ivan Panin , Charles Walter

In this paper we prove over fields of characteristic zero that the zero slice of the motivic sphere spectrum is the motivic Eilenberg-Maclane spectrum. As a corollary one concludes that the slices of any spectrum are modules over the…

Algebraic Geometry · Mathematics 2007-05-23 Vladimir Voevodsky

Given a complex algebraic variety X, we define a natural number called the motivic dimension which measures the amount of transcendental (co)homology of X. It is zero precisely when all the (co)homolgy is spanned by algebraic cycles. Most…

Algebraic Geometry · Mathematics 2007-06-19 Donu Arapura

We give an explicit conjectural formula for the motivic Euler characteristic of an arbitrary symplectic local system on the moduli space A_3 of principally polarized abelian threefolds. The main term of the formula is a conjectural motive…

Algebraic Geometry · Mathematics 2013-01-22 Jonas Bergström , Carel Faber , Gerard van der Geer

We build a ring spectrum representing Milnor-Witt motivic cohomology, as well as its \'etale local version and show how to deduce out of it three other theories: Borel-Moore homology, cohomology with compact support and homology. These…

K-Theory and Homology · Mathematics 2017-08-22 Frédéric Déglise , Jean Fasel

The dual motivic Steenrod algebra with mod $\ell$ coefficients was computed by Voevodsky over a base field of characteristic zero, and by Hoyois, Kelly, and {\O}stv{\ae}r over a base field of characteristic $p \neq \ell$. In the case $p =…

Algebraic Geometry · Mathematics 2026-02-20 Martin Frankland , Markus Spitzweck

Let k be a field of characteristic not 2. We conjecture that if X is a quasi-projective k-variety with trivial motivic Euler characteristic, then Sym$^n$X has trivial motivic Euler characteristic for all n. Conditional on this conjecture,…

Algebraic Geometry · Mathematics 2025-01-08 Dori Bejleri , Stephen McKean

Thomason's \'{e}tale descent theorem for Bott periodic algebraic $K$-theory \cite{aktec} is generalized to any $MGL$ module over a regular Noetherian scheme of finite dimension. Over arbitrary Noetherian schemes of finite dimension, this…

Algebraic Geometry · Mathematics 2022-06-29 Elden Elmanto , Marc Levine , Markus Spitzweck , Paul Arne Østvær

Let X be a smooth projective curve over a field of characteristic zero. We calculate the motivic class of the moduli stack of semistable Higgs bundles on X. We also calculate the motivic class of the moduli stack of vector bundles with…

Algebraic Geometry · Mathematics 2023-03-15 Roman Fedorov , Alexander Soibelman , Yan Soibelman