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We prove the decomposition theorem for Hodge modules with integral structure along proper K\"ahler morphisms, partially generalizing M. Saito's theorem for projective morphisms. Our proof relies on compactifications of period maps of…

Algebraic Geometry · Mathematics 2024-01-19 Mads Bach Villadsen

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

With a basic knowledge of cohomology theory, the background necessary to understand Hodge theory and polarization, Deligne's Mixed Hodge Structure on cohomology of complex algebraic varieties is described.

Algebraic Geometry · Mathematics 2013-02-26 Fouad Elzein , Lê Dung Trang

It's well known that multiple polylogarithms give rise to good unipotent variations of mixed Hodge-Tate structures. In this paper we shall {\em explicitly} determine these structures related to multiple logarithms and some other multiple…

Algebraic Geometry · Mathematics 2009-07-02 Jianqiang Zhao

We discuss variations of mixed Hodge structure arising from projective morphisms of complex analytic spaces. Then we treat generalizations of Koll\'ar's torsion-free theorem, vanishing theorem, and so on, for reducible complex analytic…

Algebraic Geometry · Mathematics 2025-03-12 Osamu Fujino , Taro Fujisawa

We employ the inductive structure of determinantal varieties to calculate the mixed Hodge module structure of local cohomology modules with determinantal support. We show that the weight of a simple composition factor is uniquely determined…

Algebraic Geometry · Mathematics 2023-01-23 Michael Perlman

We prove that the Gysin map is compatible with mixed Hodge Structures.

Algebraic Geometry · Mathematics 2007-05-23 Mark A. de Cataldo , Luca Migliorini

We discuss the variations of mixed Hodge structure for cohomology with compact support of quasi-projective simple normal crossing pairs. We show that they are graded polarizable admissible variations of mixed Hodge structure. Then we prove…

Algebraic Geometry · Mathematics 2014-03-18 Osamu Fujino , Taro Fujisawa

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 study the monodromies and the limit mixed Hodge structures of families of complete intersection varieties over a punctured disk in the complex plane. For this purpose, we express their motivic nearby fibers in terms of the geometric data…

Algebraic Geometry · Mathematics 2021-03-11 Takahiro Saito , Kiyoshi Takeuchi

This article constructs Von Neumann invariants for constructible complexes and coherent D-modules on compact complex manifolds, generalizing the work of the author on coherent L 2-cohomology. We formulate a conjectural generalization of…

Algebraic Geometry · Mathematics 2022-03-15 Philippe Eyssidieux

A construction of braid group actions on coherent sheaves using mixed Hodge modules and some well known constructions from geometric representation theory is given.

Representation Theory · Mathematics 2012-10-31 Rahbar Virk

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

This is primarily an expository piece and the first sentence of the introduction pretty much sums it up: This article is aimed at people who already know what mixed Hodge structures are and what they are good for, but who are not sure how…

Algebraic Geometry · Mathematics 2007-05-23 Donu Arapura

We prove a formality theorem for algebraic objects internal to smooth complex varieties that are not compact but whose mixed Hodge structure has a certain purity property.

Algebraic Topology · Mathematics 2017-03-27 Geoffroy Horel

In this paper, we show that the mixed Hodge structures of character varieties are of Hodge--Tate type and that the mixed Hodge polynomials are independent of the choice of generic eigenvalues, which is a conjecture due to Hausel, Letellier…

Algebraic Geometry · Mathematics 2014-07-15 Arata Komyo

This is a review article on the combinatorial aspects of the mixed Hodge structure of a Milnor fibre of the isolated hypersurface singularity. We give a purely combinatorial method to compute spectral pairs of the singularity under the…

Algebraic Geometry · Mathematics 2007-05-23 Susumu Tanabé

Variation of mixed Hodge structures(VMHS), introduced by P. Deligne, is a linear structure reflecting the geometry on cohomology of the fibers of an algebraic family, generalizing variation of Hodge structures for smooth proper families,…

Algebraic Geometry · Mathematics 2013-02-26 Patrick Brosnan , Fouad Elzein

In this paper we introduce a certain space of higher order modular forms of weight 0 and show that it has a Hodge structure coming from the geometry of the fundamental group of a modular curve. This generalizes the usual structure on…

Number Theory · Mathematics 2015-05-14 Ramesh Sreekantan

Traditionally, Hodge structures are associated with complex projective varieties. In my expository lectures I discussed a non-commutative generalization of Hodge structures in deformation quantization and in derived algebraic geometry.

Algebraic Geometry · Mathematics 2008-02-01 Maxim Kontsevich