English
Related papers

Related papers: Mixed Hodge Complexes on Algebraic Varieties

200 papers

We prove that on a certain class of smooth complex varieties (those with "affine even stratifications"), the category of mixed Hodge modules is "almost" Koszul: it becomes Koszul after a few unwanted extensions are eliminated. We also give…

Representation Theory · Mathematics 2013-03-20 Pramod N. Achar , S. Kitchen

In this article we survey recent results on rigid dualizing complexes over commutative algebras. We begin by recalling what are dualizing complexes. Next we define rigid complexes, and explain their functorial properties. Due to the…

Algebraic Geometry · Mathematics 2008-07-20 Amnon Yekutieli

We give a proof of the Thom-Sebastiani theorem for mixed Hodge modules using a compatibility with Verdier specialization.

Algebraic Geometry · Mathematics 2026-05-08 Morihiko Saito

We study a natural Hodge theoretic generalization of rational (or $\mathbb{Q}$-)homology manifolds through an invariant ${\rm HRH(Z)}$ where $Z$ is a complex algebraic variety. The defining property of this notion encodes the difference…

Algebraic Geometry · Mathematics 2025-01-27 Bradley Dirks , Sebastian Olano , Debaditya Raychaudhury

Let A be a commutative ring, B a commutative A-algebra and M a complex of B-modules. We begin by constructing the square Sq_{B/A} M, which is also a complex of B-modules. The squaring operation is a quadratic functor, and its construction…

Commutative Algebra · Mathematics 2007-05-23 Amnon Yekutieli , James J. Zhang

Let S be a connected scheme smooth and of finite type over the field of complex numbers. To every 1-motive over S, Andr\'e associated the enriched Hodge realization given by a torsion-free, graded-polarizable and admissible variation of…

Algebraic Geometry · Mathematics 2026-05-28 Cristiana Bertolin

We introduce a notion of oriented dialgebra and develop a cohomology theory for oriented dialgebras based on the possibility to mix the standard chain complexes computing group cohomology and associative dialgebra cohomology. We also…

Rings and Algebras · Mathematics 2020-09-29 Ali N. A. Koam , Ripan Saha

We develop a Hodge theory for relative simple normal crossing varieties over an Artinian base scheme. We introduce the notion of a mixed Hodge structure over an Artin ring, which axiomatizes the structure that is found on the cohomology of…

Algebraic Geometry · Mathematics 2012-05-01 Christian Lehn

The purpose of this article is to investigate the properties of the category of mixed plectic Hodge structures defined by Nekov\'a\v{r} and Scholl. We give an equivalent description of mixed plectic Hodge structures in terms of the weight…

Algebraic Geometry · Mathematics 2020-10-30 Kenichi Bannai , Kei Hagihara , Shinichi Kobayashi , Kazuki Yamada , Shuji Yamamoto , Seidai Yasuda

We study the Hodge theory of twisted derived categories and its relation to the period-index problem. Our main contribution is the development of a theory of twisted Mukai structures for topologically trivial Brauer classes on arbitrary…

Algebraic Geometry · Mathematics 2022-12-22 James Hotchkiss

In this paper, we establish an innovative framework in logarithmic Hodge theory for toroidal varieties, introducing weighted toroidal structures and developing a systematic obstruction theory for Hodge classes. Building upon recent advances…

Algebraic Geometry · Mathematics 2025-09-30 Jiaming Luo

Ideas from Hodge theory have found important applications in representation theory. We give a survey of joint work with Ben Elias which uncovers Hodge theoretic structure in the Hecke category ("Soergel bimodules"). We also outline…

Representation Theory · Mathematics 2016-10-21 Geordie Williamson

A homotopical treatment of intersection cohomology recently developed by Chataur-Saralegui-Tanr\'e associates a "perverse algebraic model" to every topological pseudomanifold, extending Sullivan's presentation of rational homotopy to…

Algebraic Topology · Mathematics 2016-03-31 David Chataur , Joana Cirici

We prove that a variation of mixed Hodge structure is embedded in a logarithmic variation of pure Hodge structure, and a generalized version of this result. These results suggest some simple construction of the category of mixed motives by…

Algebraic Geometry · Mathematics 2022-12-22 Kazuya Kato , Chikara Nakayama , Sampei Usui

We introduce filtrations in chiral homology complexes of smooth elliptic curves, exploiting the mixed Hodge structure on cohomology groups of configuration spaces. We use these to relate the chiral homology of a smooth elliptic curve with…

Quantum Algebra · Mathematics 2023-11-29 Jethro van Ekeren , Reimundo Heluani

We compute the mixed Hodge structure on the cohomology ring of complements of complex coordinate subspace arrangements. The mixed Hodge structure can be described in terms of the special bigrading on the cohomology ring of complements of…

Algebraic Geometry · Mathematics 2017-04-21 Yury V. Eliyashev

We develop a `universal' support theory for derived categories of constructible (analytic or \'etale) sheaves, holonomic D-modules, mixed Hodge modules and others. As applications we classify such objects up to the tensor triangulated…

Algebraic Geometry · Mathematics 2022-10-18 Martin Gallauer

Motivated by our previous work on Hodge-index type inequalities, we give a form of mixed Hodge-Riemann bilinear relation by using the notion of $m$-positivity, whose proof is an adaptation of the works of Timorin and Dinh-Nguy\^{e}n. This…

Algebraic Geometry · Mathematics 2018-11-15 Jian Xiao

We prove an injectivity theorem for the cohomology of the Du Bois complexes of varieties with isolated singularities. We use this to deduce vanishing statements for the cohomologies of higher Du Bois complexes of such varieties. Besides…

Algebraic Geometry · Mathematics 2026-05-27 Mihnea Popa , Wanchun Shen , Anh Duc Vo

We establish a characterization of the Du Bois complex of a reduced pair $(X,Z)$ when $X\smallsetminus Z$ has rational singularities. As an application, when $X$ has normal Du Bois singularities and $Z$ is the locus of non-rational…

Algebraic Geometry · Mathematics 2024-02-09 Sung Gi Park