English
Related papers

Related papers: Some remarks on motivical and derived invariants

200 papers

In this note, we prove the Zilber--Pink conjecture for subvarieties of mixed Shimura varieties, which are not defined over~$\overline{\mathbb Q}$ in a strong sense. We prove similar results for general variations of mixed Hodge structure of…

Algebraic Geometry · Mathematics 2025-04-02 Bruno Klingler , Salim Tayou

We prove that the Tate conjecture is invariant under Homological Projective Duality (=HPD). As an application, we prove the Tate conjecture in the new cases of linear sections of determinantal varieties, and also in the cases of complete…

Algebraic Geometry · Mathematics 2017-12-01 Goncalo Tabuada

Originally a technical tool, the derived category of coherent sheaves over an algebraic variety has become over the last twenty years an important invariant in the birational study of algebraic varieties. Problems of birational invariance…

Algebraic Geometry · Mathematics 2007-05-23 Raphael Rouquier

We relate invariants in derived categories associated to tame actions of finite groups on projective varieties over a finite field to zeros of L-functions

Number Theory · Mathematics 2013-02-01 Philippe Cassou-Noguès , Ted Chinburg , Boas Erez , Martin. J. Taylor

We define Hochschild cohomology of the second kind for differential graded (dg) or curved algebras as a derived functor in the twisted derived category, and show that it is invariant under suitable Morita equivalences of the second kind. A…

Category Theory · Mathematics 2026-02-20 Ai Guan , Julian Holstein , Andrey Lazarev

We know that semi-regular sub-varieties satisfy the variational Hodge conjecture i.e., given a family of smooth projective varieties $\pi:\mathcal{X} \to B$, a special fiber $\mathcal{X}_o$ and a semi-regular subvariety $Z \subset…

Algebraic Geometry · Mathematics 2016-12-05 Ananyo Dan , Inder Kaur

We discuss a relation between the structure of derived categories of smooth projective varieties and their birational properties. We suggest a possible definition of a birational invariant, the derived category analogue of the intermediate…

Algebraic Geometry · Mathematics 2018-09-05 Alexander Kuznetsov

A conjecture by Yves Andre and Frans Oort says that closed subvarieties of Shimura varieties that contain a Zariski dense subset of special points are subvarieties of Hodge type. We prove this in the case where the subvariety is a curve…

Algebraic Geometry · Mathematics 2007-05-23 Bas Edixhoven , Andrei Yafaev

We prove that the bounded derived category of coherent sheaves on a smooth projective complex variety reconstructs the isomorphism classes of fibrations onto smooth projective curves of genus $g\geq 2$. Moreover, in dimension at most four,…

Algebraic Geometry · Mathematics 2023-09-14 Luigi Lombardi

This paper presents a proof of the monodromy conjecture for determinantal varieties. Our strategy centers on an in-depth analysis of monodromy zeta functions, leveraging a generalized A'Campo formula, an examination of multiple contact…

Algebraic Geometry · Mathematics 2025-10-31 Yifan Chen , Huaiqing Zuo

Inspired by recent work of Aslanyan and Daw, we introduce the notion of $\Sigma$-orbits in the general framework of distinguished categories. In the setting of connected Shimura varieties, this concept contains many instances of…

Number Theory · Mathematics 2025-02-11 Fabrizio Barroero , Gabriel Andreas Dill

The motivic zeta function of a smooth and proper $\mathbb{C}((t))$-variety $X$ with trivial canonical bundle is a rational function with coefficients in an appropriate Grothendieck ring of complex varieties, which measures how $X$…

Algebraic Geometry · Mathematics 2024-02-01 Luigi Lunardon , Johannes Nicaise

The Lichtenbaum-Quillen conjecture for smooth complex varieties states that algebraic and topological K-theory with finite coefficients become isomorphic in high degrees. We define the "Lichtenbaum-Quillen dimension" of a variety in terms…

Algebraic Geometry · Mathematics 2026-04-14 Nicolas Addington , Elden Elmanto

In two earlier articles, we proved that, if the Hodge conjecture is true for ALL CM abelian varieties over the complex numbers, then both the Tate conjecture and the standard conjectures are true for abelian varieties over finite fields.…

Number Theory · Mathematics 2022-02-08 James S. Milne

The original article expressed the special values of the zeta function of a variety over a finite field in terms of the $\hat{Z}$-cohomology of the variety. As the article was being completed, Lichtenbaum conjectured the existence of…

Algebraic Geometry · Mathematics 2021-01-19 J. S. Milne

We extend results of Colliot-Th\'el\`ene and Raskind on the $\mathcal{K}_2$-cohomology of smooth projective varieties over a separably closed field $k$ to the \'etale motivic cohomology of smooth, not necessarily projective, varieties over…

Algebraic Geometry · Mathematics 2019-11-22 Bruno Kahn

Let A be an abelian variety over a number field k and F a finite cyclic extension of k of p-power degree for an odd prime p. Under certain technical hypotheses, we obtain a reinterpretation of the equivariant Tamagawa number conjecture…

Number Theory · Mathematics 2014-05-21 Werner Bley , Daniel Macias Castillo

In this article we prove derived invariance of Hochschild-Mitchell homology and cohomology and we extend to $k$-linear categories a result by Barot and Lenzing concerning derived equivalences and one-point extensions. We also prove the…

K-Theory and Homology · Mathematics 2007-05-23 Estanislao Herscovich , Andrea Solotar

We lift the classical Hasse--Weil zeta function of varieties over a finite field to a map of spectra with domain the Grothendieck spectrum of varieties constructed by Campbell and Zakharevich. We use this map to prove that the Grothendieck…

Algebraic Geometry · Mathematics 2019-08-14 Jonathan Campbell , Jesse Wolfson , Inna Zakharevich

In this paper we show that the fields of rational invariants over the irreducible components of the module varieties for an acyclic gentle algebra are purely transcendental extensions. Along the way, we exhibit for such fields of rational…

Representation Theory · Mathematics 2013-03-05 Andrew T. Carroll , Calin Chindris