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Related papers: On the Hodge conjecture for $q$-complete manifolds

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Suppose that Y is a cyclic cover of projective space branched over a hyperplane arrangement D, and that U is the complement of the ramification locus in Y. The first theorem implies that the Beilinson-Hodge conjecture holds for U if certain…

Algebraic Geometry · Mathematics 2019-08-15 Donu Arapura

The main purpose of this paper is to show that the mixed Hodge polynomial of the ``space of equations'' for smooth complete intersections of given multidegree in $\mathbb{C} P^n$ is divisible by the mixed Hodge polynomial of the group…

Algebraic Geometry · Mathematics 2007-05-23 Alexei G. Gorinov

Consider the configuration spaces of manifolds. We give a precise formula for the integral cohomological dimension (the degree of top non-trivial integral cohomology group) of unordered configuration spaces of manifolds with non-trivial…

Algebraic Topology · Mathematics 2023-05-12 Muhammad Yameen

We prove some injectivity theorems. Our proof depends on the theory of mixed Hodge structures on cohomology groups with compact support. Our injectivity theorems would play crucial roles in the minimal model theory for higher-dimensional…

Algebraic Geometry · Mathematics 2015-07-06 Osamu Fujino

In this article, we will explore the fundamental concepts, including various basic concepts on $d$-complex manifolds, along with several differential operators and examine the relationships between them. A $d$-K\"ahler manifold is a…

Differential Geometry · Mathematics 2024-06-17 Sanjay Amrutiya , Ayush Jaiswal

Let $X$ be a projective manifold. Let $Y_1,...,Y_{p+1}$ be $p+1$ ample hypersurfaces in complete intersection position on $X$, each defined by the global section of an ample Cartier divisor. We show in this note that for $i\le p+1$, the…

Algebraic Geometry · Mathematics 2007-05-23 Bruno Fabre

This paper contains a thorough investigation of invariant distributions supported on limit sets of discrete groups acting convex cocompactly on symmetric spaces of negative curvature. It can be considered as a continuation of…

Differential Geometry · Mathematics 2007-05-23 Martin Olbrich

We define Hodge correlators for a compact Kahler manifold X. They are complex numbers which can be obtained by perturbative series expansion of a certain Feynman integral which we assign to X. We show that they define a functorial real…

Algebraic Geometry · Mathematics 2009-08-14 A. B. Goncharov

Let $E$ be the Whitney sum of complex line bundles over a topological space $X$. Then, the projectivization $P(E)$ of $E$ is called a \emph{projective bundle} over $X$. If $X$ is a non-singular complete toric variety, so is $P(E)$. In this…

Algebraic Topology · Mathematics 2017-01-10 Suyoung Choi , Seonjeong Park

The Hodge conjecture is shown to be equivalent to a question about the homology of very ample divisors with ordinary double point singularities. The infinitesimal version of the result is also discussed.

Algebraic Geometry · Mathematics 2007-05-23 R. P. Thomas

We propose, motivate and give evidence for a relation between the $\mathcal D$-modules of the quantum cohomology of a smooth complex projective manifold $X$ and a projective bundle $\PP(\oplus L_i)$ over $X$.

Algebraic Geometry · Mathematics 2007-05-23 Artur Elezi

We introduce and study Hodge-de Rham numbers for compact almost complex 4-manifolds, generalizing the Hodge numbers of a complex surface. The main properties of these numbers in the case of complex surfaces are extended to this more general…

Differential Geometry · Mathematics 2023-01-19 Joana Cirici , Scott O. Wilson

The Hodge conjecture is shown to hold for rationally connected fivefolds, or more generally for fivefolds for which the base of the maximal rationally connected fibration is at most 3 dimensional.

Algebraic Geometry · Mathematics 2007-05-23 Donu Arapura

We compute the Hodge filtration on cohomology groups of complements of complex coordinate subspace arrangements. By means of this result we construct integral representations of holomorphic functions such that kernels of these…

Algebraic Geometry · Mathematics 2013-05-14 Yury Eliyashev

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

We compute the integral homology and cohomology groups of configuration spaces of two distinct points on a given real projective space. The explicit answer is related to the (known multiplicative structure in the) integral cohomology---with…

Algebraic Topology · Mathematics 2012-01-24 Jesus Gonzalez , Peter Landweber

In this note we give a p-adic proof of Hodge symmetry for smooth, projective threefolds over complex numbers.

Algebraic Geometry · Mathematics 2013-06-14 Kirti Joshi

En combinant une m\'ethode de C. Voisin avec la descente galoisienne sur le groupe de Chow en codimension $2$, nous montrons que le troisi\`eme groupe de cohomologie non ramifi\'ee d'un solide cubique lisse d\'efini sur le corps des…

Algebraic Geometry · Mathematics 2023-06-22 Jean-Louis Colliot-Thélène , Alena Pirutka

Let $(X,J) $ be an almost complex manifold with a (smooth) involution $\sigma:X\to X$ such that fix($\sigma$) is non-empty. Assume that $\sigma$ is a complex conjugation, i.e, the differential of $\sigma$ anti-commutes with $J$. The space…

Algebraic Topology · Mathematics 2021-09-21 Manas Mandal , Parameswaran Sankaran

We prove by induction on dimension the Hodge conjecture for smooth complex projective varieties. Let $X$ be a smooth complex projective variety. Then $X$ is birational to a possibly singular projective hypersurface, hence to a smooth…

Algebraic Geometry · Mathematics 2024-10-08 Johann Bouali