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For any polynomial f with complex coefficients we find a remarkable subset of poles of the motivic zeta function. It is combinatorially determined by any log resolution and it admits an intrinsic interpretation in terms of contact loci of…

Algebraic Geometry · Mathematics 2026-02-17 Nero Budur , Eduardo de Lorenzo Poza , Quan Shi , Huaiqing Zuo

We investigate Cousin (bi-)complexes in the setting of motives. Over essentially smooth local schemes, the columns of the Cousin bicomplex with coefficients in any stable motivic homotopy type are shown to be acyclic. On the other hand, we…

Algebraic Geometry · Mathematics 2024-02-19 A. Druzhinin , Håkon Kolderup , Paul Arne Østvær

We develop the theory of Milnor-Witt motives and motivic cohomology. Compared to Voevodsky's theory of motives and his motivic cohomology, the first difference appears in our definition of Milnor-Witt finite correspondences, where our…

Algebraic Geometry · Mathematics 2022-04-05 Tom Bachmann , Baptiste Calmès , Frédéric Déglise , Jean Fasel , Paul Arne Østvær

We extend the usual projective Abel-Radon transform to the larger context of a smooth complete toric variety X. We define and study toric concavity attached to an algebraic splitting vector bundle on X and we prove a toric version of the…

Complex Variables · Mathematics 2009-03-27 Martin Weimann

Let $A$ be an abelian variety defined over a number field $K$, the number of torsion points rational over a finite extension $L$ is bounded polynomially in terms of the degree $[L:K]$. When $A$ is isogenous to a product of simple abelian…

Number Theory · Mathematics 2010-03-10 Marc Hindry , Nicolas Ratazzi

We formulate a conjectural p-adic analogue of Borel's theorem relating regulators for higher K-groups of number fields to special values of the corresponding zeta-functions, using syntomic regulators and p-adic L-functions. We also…

K-Theory and Homology · Mathematics 2007-11-19 Amnon Besser , Paul Buckingham , Rob de Jeu , Xavier-Francois Roblot

Our aim is to prove that if T is a complete first order theory, which is not superstable (no knowledge on this notion is required), included in a theory T_1 then for any lambda > |T_1| there are 2^lambda models of T_1 such that for any two…

Logic · Mathematics 2026-05-07 Saharon Shelah

We develop the motivic integration theory over formal Deligne-Mumford stacks over a power series ring of arbitrary characteristic. This is a generalization of the corresponding theory for tame and smooth Deligne-Mumford stacks constructed…

Algebraic Geometry · Mathematics 2024-02-27 Takehiko Yasuda

Given a smooth projective variety $M$ endowed with a faithful action of a finite group $G$, following Jarvis-Kaufmann-Kimura and Fantechi-G\"ottsche, we define the orbifold motive (or Chen-Ruan motive) of the quotient stack $[M/G]$ as an…

Algebraic Geometry · Mathematics 2019-03-13 Lie Fu , Zhiyu Tian , Charles Vial

In this paper we explore the isotropic stable motivic homotopy category constructed from the usual stable motivic homotopy category, following the work of Vishik on isotropic motives (see [29]), by killing anisotropic varieties. In…

Algebraic Geometry · Mathematics 2022-08-08 Fabio Tanania

We formulate and prove a Conner-Floyd isomorphism for the algebraic K-theory of arbitrary qcqs derived schemes. To that end, we study a stable $\infty$-category of non-$\mathbb A^1$-invariant motivic spectra, which turns out to be…

Algebraic Geometry · Mathematics 2024-02-15 Toni Annala , Marc Hoyois , Ryomei Iwasa

For a finite Galois extension of fields L/k with Galois group G, we study a functor from the G-equivariant stable homotopy category to the stable motivic homotopy category over k induced by the classical Galois correspondence. We show that…

Algebraic Topology · Mathematics 2015-09-25 J. Heller , K. Ormsby

Let $A_1, A_2,A_3$ be semisimple objects in a neutral tannakian category over a field of characteristic zero. Let $L$ be an extension of $A_2$ by $A_1$, and $N$ an extension of $A_3$ by $A_2$. Let $M$ be a blended extension (extension…

Algebraic Geometry · Mathematics 2024-07-18 Payman Eskandari

We study cohomology support loci of regular holonomic D-modules on complex abelian varieties, and obtain conditions under which each irreducible component of such a locus contains a torsion point. One case is that both the D-module and the…

Algebraic Geometry · Mathematics 2014-03-05 Christian Schnell

We study the expressive power of various modal logics with team semantics. We show that exactly the properties of teams that are downward closed and closed under team k-bisimulation, for some finite k, are definable in modal logic extended…

Logic in Computer Science · Computer Science 2014-06-25 Lauri Hella , Kerkko Luosto , Katsuhiko Sano , Jonni Virtema

We prove equivariant versions of the Beilinson-Lichtenbaum conjecture for Bredon motivic cohomology of smooth complex and real varieties with an action of the group of order two. This identifies equivariant motivic and topological…

Algebraic Topology · Mathematics 2018-03-20 Jeremiah Heller , Mircea Voineagu , Paul Arne Ostvaer

We prove a mixed characteristic analog of the Beilinson-Lichtenbaum Conjecture for p-adic motivic cohomology. It gives a description, in the stable range, of p-adic motivic cohomology (defined using algebraic cycles) in terms of…

Algebraic Geometry · Mathematics 2016-04-19 Veronika Ertl , Wieslawa Niziol

The aim of this paper is to connect two important and apparently unrelated theories: motivic homotopy theory and ramification theory. We construct motivic homotopy categories over a qcqs base scheme $S$, in which cohomology theories with…

Algebraic Geometry · Mathematics 2025-04-04 Junnosuke Koizumi , Hiroyasu Miyazaki , Shuji Saito

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

Let $G$ be a split semisimple algebraic group over a field and let $A^*$ be an oriented cohomology theory in the sense of Levine--Morel. We provide a uniform approach to the $A^*$-motives of geometrically cellular smooth projective…

Algebraic Geometry · Mathematics 2021-07-01 Victor Petrov , Nikita Semenov