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Assuming the K\"unneth type standard conjecture, we propose a way to describe objects of mixed motives explicitly. We study their formal properties, and we associate mixed motives to schemes smooth and separated over a field. This serves as…

Algebraic Geometry · Mathematics 2020-01-31 Doosung Park

It is often stated that the Carlitz module is to the ring of univariate polynomials over a finite field what the multiplicative group is to the ring of integers. This analogy extends to the "rank 2" case, where Drinfeld modules play a role…

Number Theory · Mathematics 2023-06-26 Quentin Gazda , Damien Junger

We establish the complete classification of Chow motives of projective homogeneous varieties for $p$-inner semi-simple algebraic groups, with coefficients in $\mathbb{Z}/p\mathbb{Z}$. Our results involve a new motivic invariant, the Tate…

Algebraic Geometry · Mathematics 2024-07-02 Charles De Clercq , Anne Quéguiner-Mathieu

We define the category of mixed Tate motives over the ring of S-integers of a number field. We define the motivic fundamental group (made unipotent) of a unirational variety over a number field. We apply this to the study of the motivic…

Number Theory · Mathematics 2007-05-23 P. Deligne , A. B. Goncharov

We consider triangulated orbit categories, with the motivating example of cluster categories, in their usual context of algebraic triangulated categories, then present them from another perspective in the framework of topological…

Algebraic Topology · Mathematics 2014-11-14 Julia E. Bergner , Marcy Robertson

This paper concerns the Algebraic Sato--Tate and Sato--Tate conjectures, based on Serre's original motivic formulation, with an eye towards explicit computations of Sato--Tate groups. We build on the algebraic framework for the Sato--Tate…

Number Theory · Mathematics 2023-02-28 Grzegorz Banaszak , Kiran S. Kedlaya

In this paper we define an explicit E_{infinity}-structure, i.e. a coherently homotopy associative and commutative product on chain complexes defining (integral and mod-l) motivic cohomology as well as mod -l \'etale cohomology. We also…

Algebraic Geometry · Mathematics 2014-07-22 Roy Joshua

We describe a construction of an object associated to the fundamental group of the projective line minus three points in the Bloch-Kriz category of mixed Tate motives. This description involves Massey products of Steinberg symbols in the…

Algebraic Geometry · Mathematics 2009-03-11 Bertrand J. Guillou

The present article is devoted to introduce, in a braided monoidal setting, the notion of module over a relative Rota-Baxter operator. It is proved that there exists an adjunction between the category of modules associated to an invertible…

Rings and Algebras · Mathematics 2025-06-10 José Manuel Fernández Vilaboa , Ramón González Rodríguez , Brais Ramos Pérez

In this paper we introduce the notion of a relative volutive (higher) category, specializing to the notion of a lax volutive (higher) category. Our primary motivation to study these objects is the following: while any rigid symmetric…

Category Theory · Mathematics 2026-02-18 Tim Lüders

We define the concept of a regular object with respect to another object in an arbitrary category. We present basic properties of regular objects and we study this concept in the special cases of abelian categories and locally finitely…

Category Theory · Mathematics 2007-05-23 S. S. Dăscălescu , C. Năstăsescu , A. Tudorache , L. Dăuş

We present a research programme aimed at constructing classifying toposes of Weil-type cohomology theories and associated categories of motives, and introduce a number of notions and preliminary results already obtained in this direction.…

Algebraic Geometry · Mathematics 2015-07-23 Olivia Caramello

We compute explicitly the Chow motive of any generalized Kummer variety associated to any abelian surface. In fact, it lies in the rigid tensor subcategory of the category of Chow motives generated by the Chow motive of the underlying…

Algebraic Geometry · Mathematics 2015-06-16 Ze Xu

A category of correspondences based on Waldhausen A-theory has interesting analogies, in the context of differential topology, to categories of mixed Tate motives studied in arithmetic geometry. In particular, the Hopf object S \wedge_A S…

Algebraic Topology · Mathematics 2009-08-24 Jack Morava

In [LWY23] the authors construct the reflective center of a module category M over a braided monoidal category B. The reflective center is by construction a braided module category over B. In the case where B is the category of modules over…

Category Theory · Mathematics 2025-06-11 Peter Schauenburg

Tilings of the plane resemble the simplicial and other complexes from algebraic topology, but have not been studied from this perspective. We construct finite categories corresponding to polygons with labeled directed edges, and introduce…

Category Theory · Mathematics 2025-09-09 Catherine DiLeo , Preston Sessoms , Brandon T. Shapiro

Inspired by a work of Kapranov, we define the notion of Dolbeault complex of the formal neighborhood of a closed embedding of complex manifolds. This construction allows us to study coherent sheaves over the formal neighborhood via complex…

Algebraic Geometry · Mathematics 2013-03-05 Shilin Yu

We establish a theory of complexes of relative correspondences. The theory generalizes the known theory of complexes of correspondences of smooth projective varieties. It will be applied in the sequel of this paper to the construction of…

Algebraic Geometry · Mathematics 2014-01-03 Masaki Hanamura

A Hopf algebra object in Loday and Pirashvili's category of linear maps entails an ordinary Hopf algebra and a Yetter-Drinfel'd module. We equip the latter with a structure of a braided Leibniz algebra. This provides a unified framework for…

Quantum Algebra · Mathematics 2014-03-18 Ulrich Kraehmer , Friedrich Wagemann

We consider three categories arising from the higher Auslander algebras of type $A$ in relation to $d$-dimensional cluster combinatorics: $d$-exact subcategory of the module category of $A^d_{n+1}$ generated by the $d$-cluster-tilting…

Representation Theory · Mathematics 2026-05-27 Mikhail Gorsky , Nicholas J. Williams
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