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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

We show that the category of mixed Hodge complexes admits a Cartan-Eilenberg structure, a notion introduced in [GNPR10] leading to a good calculation of the homotopy category in terms of (co)fibrant objects. This result provides a…

Algebraic Geometry · Mathematics 2016-10-04 Joana Cirici , Francisco Guillén

We develop the theory of multiple polylogarithms from analytic, Hodge and motivic point of view. Define the category of mixed Tate motives over a ring of integers in a number field. Describe explicitly the multiple polylogarithm Hopf…

Algebraic Geometry · Mathematics 2007-05-23 A. B. Goncharov

We identify the category of real mixed Hodge structures with the category of vector bundles with connections (not necessarily flat) on C, equivariant with respect to C^*. Here C is the complex plane considered as a 2-dimensional real…

Algebraic Geometry · Mathematics 2010-07-13 Mikhail Kapranov

We define and construct mixed Hodge structures on real schematic homotopy types of complex quasi-projective varieties, giving mixed Hodge structures on their homotopy groups and pro-algebraic fundamental groups. We also show that these…

Algebraic Geometry · Mathematics 2016-05-13 J. P. Pridham

The aim of this article is to study degeneration of the variations of Hodge structure associated to a proper K\"ahler semistable morphism. We prove that the weight filtrations constructed in the author's previous paper coincide with the…

Algebraic Geometry · Mathematics 2017-06-13 Taro Fujisawa

We use the methods of empirical mathematics to show that iterative logarithmic operations will result in an attractor point on the complex plane. Moreover, we demonstrate that different bases converge onto different attractors. Finally, we…

General Mathematics · Mathematics 2010-12-31 Pascal Wallisch

We use mixed Hodge theory to show that the functor of singular chains with rational coefficients is formal as a lax symmetric monoidal functor, when restricted to complex schemes whose weight filtration in cohomology satisfies a certain…

Algebraic Topology · Mathematics 2022-10-27 Joana Cirici , Geoffroy Horel

We prove that affine invariant manifolds in strata of flat surfaces are algebraic varieties. The result is deduced from a generalization of a theorem of M\"oller. Namely, we prove that the image of a certain twisted Abel-Jacobi map lands in…

Dynamical Systems · Mathematics 2017-10-31 Simion Filip

Formal (mixed) Hodge structures FHS are introduced in such a way that the Hodge realization of Deligne's 1-motives extends to a realization from Laumon's 1-motives to formal Hodge structures of level 1, providing an equivalence of…

Algebraic Geometry · Mathematics 2007-06-11 L. Barbieri-Viale

Based on the strong analogy between the category of log mixed Hodge structures and the category ${\cal A}_X$ of $\ell$-adic nature, which we have introduced in the previous part and is closely related to the weight-monodromy conjecture, we…

Algebraic Geometry · Mathematics 2025-11-24 Kazuya Kato , Chikara Nakayama , Sampei Usui

We prove that the relative log de Rham cohomology groups of a projective semistable log smooth degeneration admit a natural \textit{limiting} mixed Hodge structure. More precisely, we construct a family of increasing filtrations and a…

Algebraic Geometry · Mathematics 2020-11-24 Taro Fujisawa

We define the category of \'etale Chow motives as the \'etale analogue of Grothendieck motives and proved that it embeds in $\text{DM}_{\text{\'et}}(k)$. This construction provides a characterization of the generalized Hodge conjecture in…

Algebraic Geometry · Mathematics 2024-01-30 Ivan Rosas Soto

We give a way of constructing real variations of mixed Hodge structures over compact K\"ahler manifolds by using mixed Hodge structures on Sullivan's $1$-minimal models of certain differential graded algebras associated with real variations…

Differential Geometry · Mathematics 2018-02-15 Hisashi Kasuya

We prove that a projective vertical exact log smooth morphism of fs log analytic spaces with a base of log rank one yields polarized log Hodge structures in the canonical way.

Algebraic Geometry · Mathematics 2018-11-21 Taro Fujisawa , Chikara Nakayama

We present a conjecture on the geometry of the Hodge locus of a (graded polarizable, admissible) variation of mixed Hodge structure over a complex smooth quasi-projective base, generalizing to this context the Zilber-Pink Conjecture for…

Algebraic Geometry · Mathematics 2017-11-28 Bruno Klingler

We construct an enlargement of the classifying space of mixed Hodge structures with polarized graded quotients, by adding mixed Hodge theoretic version of SL(2)-orbits. This space has a real analytic structure and a log structure with sign.…

Algebraic Geometry · Mathematics 2015-01-14 Kazuya Kato , Chikara Nakayama , Sampei Usui

For a smooth algebraic variety $X$, a monodromic $D$-module on $X\times \mathbb{C}$ is decomposed into a direct sum of some $D$-modules on $X$. We show that the Hodge filtration of a mixed Hodge module on $X\times \mathbb{C}$ whose…

Algebraic Geometry · Mathematics 2022-01-31 Takahiro Saito

We study the homotopy theory of a certain type of diagram categories whose vertices are in variable categories with a functorial path, leading to a good calculation of the homotopy category in terms of cofibrant objects. The theory is…

Algebraic Topology · Mathematics 2016-10-04 Joana Cirici

We define the height of a mixed motive over a number field extending our previous work for pure motives.

Number Theory · Mathematics 2013-07-04 Kazuya Kato