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Related papers: Some remarks on motivical and derived invariants

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We prove that smooth projective varieties with equivalent derived categories have isogenous (and sometimes isomorphic) Picard varieties. In particular their irregularity and number of independent vector fields are the same. This is turn…

Algebraic Geometry · Mathematics 2010-10-26 Mihnea Popa , Christian Schnell

We show the derived invariance of various geometric invariants of smooth complex projective varieties governed by the Albanese map, including the relative canonical ring and the class of the relative canonical model in a suitable variant of…

Algebraic Geometry · Mathematics 2023-03-07 Federico Caucci , Luigi Lombardi , Giuseppe Pareschi

We consider derived invariants of varieties in positive characteristic arising from topological Hochschild homology. Using theory developed by Ekedahl and Illusie-Raynaud in their study of the slope spectral sequence, we examine the…

Algebraic Geometry · Mathematics 2019-07-01 Benjamin Antieau , Daniel Bragg

We introduce new motivic invariants of arbitrary varieties over a perfect field. These cohomological invariants take values in the category of one-motives (considered up to isogeny in positive characteristic). The algebraic definition of…

Algebraic Geometry · Mathematics 2015-06-29 Niranjan Ramachandran

We show that any derived equivalent smooth, projective varieties of dimension 3 over a finite field $\mathbb{F}_q$ have equal zeta functions. This result is an application of the extension to smooth, projective varieties over any field of…

Algebraic Geometry · Mathematics 2017-02-08 Katrina Honigs , Jeff Achter , Sebastian Casalaina-Martin , Charles Vial

We introduce a cohomology theory for a class of projective varieties over a finite field coming from the canonical trace on a C*-algebra attached to the variety. Using the cohomology, we prove the rationality, functional equation and the…

Algebraic Geometry · Mathematics 2016-10-05 Igor Nikolaev

We obtain examples of smooth projective varieties over $\mathbb{C}$ that violate the integral Hodge conjecture and for which the total Chow group is of finite rank. Moreover, we show that there exist such examples defined over number…

Algebraic Geometry · Mathematics 2023-08-16 Humberto A. Diaz

We define and study the invariance properties of homological units. Some applications are given to the derived invariance of Hodge numbers. In particular, we prove that if X and Y are derived equivalent smooth projective varieties of…

Algebraic Geometry · Mathematics 2015-12-17 Roland Abuaf

We prove some results connecting the zeta functions of varieties over finite fields with the big Witt ring over $\mathbb Z$. We explore relations with motivic measures and a classical formula of Macdonald on invariants of symmetric products…

Number Theory · Mathematics 2015-09-18 Niranjan Ramachandran

In this paper we construct new derived invariants with integral coefficients using the theory of motifs, and give several applications. Specifically, we obtain the following results: For complex algebraic surfaces, we prove that certain…

Algebraic Geometry · Mathematics 2023-01-12 Keiho Matsumoto

Let X be a nonsingular algebraic variety in characteristic zero. To an effective divisor on X Kontsevich has associated a certain 'motivic integral', living in a completion of the Grothendieck ring of algebraic varieties. He used this…

Algebraic Geometry · Mathematics 2007-05-23 Willem Veys

In this paper, we propose $\lambda_{g}$ conjecture for Hodge integrals with target varieties. Then we establish relations between Virasoro conjecture and $\lambda_{g}$ conjecture, in particular, we prove $\lambda_{g}$ conjecture in all…

Algebraic Geometry · Mathematics 2024-12-10 Xin Wang

We study the behavior of cohomological support loci of the canonical bundle under derived equivalence of smooth projective varieties. This is achieved by investigating the derived invariance of a generalized version of Hochschild homology.…

Algebraic Geometry · Mathematics 2014-10-30 Luigi Lombardi

The (Fg) condition on Hochschild cohomology as well as the support variety theory are shown to be invariant under derived equivalence.

Representation Theory · Mathematics 2016-05-24 Julian Külshammer , Chrysostomos Psaroudakis , Øystein Skartsæterhagen

In this paper we construct a tilting sheaf for Severi-Brauer Varieties and Involution Varieties. This sheaf relates the derived category of each variety to the derived category of modules over a ring whose semisimple component consists of…

Algebraic Geometry · Mathematics 2012-04-04 Mark Blunk

We prove function field versions of the Zilber-Pink conjectures for varieties supporting a variation of Hodge structures. A form of these results for Shimura varieties in the context of unlikely intersections is the following. Let $S$ be a…

Algebraic Geometry · Mathematics 2021-05-13 Jonathan Pila , Thomas Scanlon

Beginning with the conjecture of Artin and Tate in 1966, there has been a series of successively more general conjectures expressing the special values of the zeta function of an algebraic variety over a finite field in terms of other…

Algebraic Geometry · Mathematics 2013-11-14 James Milne , Niranjan Ramachandran

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

Let $a_X:X\rightarrow \mathrm{Alb}\, X$ be the Albanese map of a smooth complex projective variety. Roughly speaking in this note we prove that for all $i \geq 0$ and $\alpha\in \mathrm{Pic}^0\, X$, the cohomology ranks $h^i(\mathrm{Alb}\,…

Algebraic Geometry · Mathematics 2018-12-18 Federico Caucci , Giuseppe Pareschi

We study a natural birational invariant for varieties over finite fields and show that its vanishing on projective space is equivalent to the Tate conjecture, the Beilinson conjecture, and the Grothendieck--Serre semi-simplicity conjecture…

Algebraic Geometry · Mathematics 2025-12-23 Samet Balkan , Stefan Schreieder
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