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In this paper, we construct some maps related to the motivic Galois action on depth-graded motivic multiple zeta values. And from these maps we give some short exact sequences about depth-graded motivic multiple zeta values in depth two and…

Number Theory · Mathematics 2018-08-14 Jiangtao Li

Using the block filtration as a realisation of the coradical filtration, we study the discrepancy between the depth filtration and the coradical filtration for motivic multiple zeta values. We construct an explicit dictionary between a…

Algebraic Geometry · Mathematics 2023-07-18 Adam Keilthy

We study the depth filtration on multiple zeta values, the motivic Galois group of mixed Tate motives over $\mathbb{Z}$ and the Grothendieck-Teichm\"uller group, and its relation to modular forms. Using period polynomials for cusp forms for…

Number Theory · Mathematics 2020-01-13 Francis Brown

The Z-grading determined by a long simple root of an affine or finite type Lie algebra arises from an adjoint or cominuscule representation of a lower rank semi-simple complex Lie algebra. Analysis of the relationship between the grading…

Representation Theory · Mathematics 2007-05-23 Meighan I. Dillon

Deligne and Goncharov constructed a neutral tannakian category of mixed Tate motives unramified over $\mathbb{Z}[\mu_N,1/N]$. Brown and Hain--Matsumoto computed the depth 2 quadratic relations of the motivic Galois group of this category…

Algebraic Geometry · Mathematics 2023-07-31 Eric Hopper

Let k be a number field, and let S be a finite set of k-rational points of P^1. We relate the Deligne-Goncharov contruction of the motivic fundamental group of X:=P^1_k- S to the Tannaka group scheme of the category of mixed Tate motives…

Algebraic Geometry · Mathematics 2007-08-31 Hélène Esnault , Marc Levine

This paper draws connections between the double shuffle equations and structure of associators; universal mixed elliptic motives as defined by Hain and Matsumoto; and the Rankin-Selberg method for modular forms for $SL_2(\mathbb{Z})$. We…

Number Theory · Mathematics 2015-04-21 Francis Brown

Inspired by a paper of Tasaka, we study the relations between totally odd, motivic depth-graded multiple zeta values. Our main objective is to determine the rank of the matrix $C_{N,r}$ defined by Brown. We will give new proofs for…

Number Theory · Mathematics 2023-10-13 Charlotte Dietze , Chokri Manai , Christian Nöbel , Ferdinand Wagner

This text gives a construction of a differential graded Lie algebra in Nori's category of effective homological motives. In fact the construction works in more a general setting than that of an Abelian category. This allows us to give the…

Algebraic Geometry · Mathematics 2007-05-23 Kaj Gartz

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

We explain why every non-trivial exact tensor functor on the triangulated category of mixed motives over a field F has zero kernel, if one assumes "all" motivic conjectures. In other words, every non-zero motive generates the whole category…

Algebraic Geometry · Mathematics 2021-07-27 Martin Gallauer

In this paper, we study the combinatorics of a subcomplex of the Bloch-Kriz cycle complex [4] used to construct the category of mixed Tate motives. The algebraic cycles we consider properly contain the subalgebra of cycles that correspond…

Algebraic Geometry · Mathematics 2018-03-16 Susama Agarwala , Owen Patashnick

Richard Hain and Makoto Matsumoto constructed a category of universal mixed elliptic motives, and described the fundamental Lie algebra of this category: it is a semi-direct product of the fundamental Lie algebra Lie$\,\pi_1(MTM)$ of the…

Quantum Algebra · Mathematics 2015-10-20 Samuel Baumard , Leila Schneps

For a number field, we have a Tannaka category of mixed Tate motives at our disposal. We construct p-adic points of the associated Tannaka group by using p-adic Hodge theory. Extensions of two Tate objects yield functions on the Tannaka…

Algebraic Geometry · Mathematics 2011-10-06 Andre Chatzistamatiou , Sinan Ünver

In this paper, we investigate linear relations among regularized motivic iterated integrals on $\mathbb{P}^{1}\setminus\{0,1,\infty\}$ of depth two, which we call regularized motivic double zeta values. Some mysterious connections between…

Number Theory · Mathematics 2021-06-22 Minoru Hirose

Bloch and Kriz construct an abelian category of mixed Tate motives as the category of comodules over a Hopf algebra obtained by the bar construction of the DGA of cycle complexes. In this paper we generalize their construction to give the…

Algebraic Geometry · Mathematics 2010-11-30 Kenichiro Kimura , Tomohide Terasoma

Using Beilinson's theory of f-categories, we prove that the triangulated category of Tate motives over a field k is equivalent to the bounded derived category of its heart, provided that k is algebraic over the rationals. This answers a…

Algebraic Geometry · Mathematics 2017-06-23 J. Wildeshaus

We apply Wildeshaus's theory of motivic intermediate extensions to the motivic decomposition conjecture, formulated by Deninger-Murre and Corti-Hanamura. We first obtain a general motivic decomposition for the Chow motive of an arbitrary…

Algebraic Geometry · Mathematics 2022-08-02 Mattia Cavicchi , Frédéric Déglise , Jan Nagel

The derived algebra of a symmetrizible Kac-Moody algebra $\lie g$ is generated (as a Lie algebra) by its root spaces corresponding to real roots. In this paper, we address the natural reverse question: given any subset of real root vectors,…

Rings and Algebras · Mathematics 2023-11-22 Irfan Habib , Deniz Kus , R. Venkatesh

We study the general properties of commutative differential graded algebras in the category of representations over a reductive algebraic group with an injective central cocharacter. Besides describing the derived category of differential…

Rings and Algebras · Mathematics 2017-04-07 Jin Cao
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