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Related papers: Towards a tropical Hodge bundle

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The cherry on top of this stacky paper is the following: for any g>1 we give a finite group G such that the moduli space of connected admissible G-covers of genus g is a smooth, fine moduli space, which is a Galois cover of the moduli space…

Algebraic Geometry · Mathematics 2007-05-23 Dan Abramovich , Alessio Corti , Angelo Vistoli

Let $C$ be an algebraic smooth complex curve of genus $g>1$. The object of this paper is the study of the birational structure of certain moduli spaces of vector bundles and of coherent systems on $C$ and the comparison of different type of…

Algebraic Geometry · Mathematics 2011-09-27 Michele Bolognesi , Sonia Brivio

Given the tropicalization of a complex subvariety of the torus, we define a morphism between the tropical cohomology and the rational cohomology of their respective tropical compactifications. We say that the subvariety of the torus is…

Algebraic Geometry · Mathematics 2026-01-14 Edvard Aksnes , Omid Amini , Matthieu Piquerez , Kris Shaw

For a simple complex Lie group G the connected components of the moduli space of G-bundles over an elliptic curve are weighted projective spaces. In this note we will provide a new proof of this result using the invariant theory of…

Representation Theory · Mathematics 2007-05-23 Stephan Mohrdieck , Robert Wendt

In this paper, we give an explicit description of tropical cohomology of smooth algebraic varieties over trivially valued fields. We also construct ``monodromy weight'' spectral sequences for tropical cohomology of geometric strictly…

Algebraic Geometry · Mathematics 2025-07-23 Ryota Mikami

A canonical hyperkaehler metric on the total space $T^*M$ of a cotangent bundle to a complex manifold $M$ has been constructed recently by the author (see alg-geom/9710026). This paper presents the results of alg-geom/9710026 in a…

Algebraic Geometry · Mathematics 2007-05-23 D. Kaledin

We introduce and study polystable divisors on a tropical curve, which are the tropical analogue of polystable torsion-free rank-1 sheaves on a nodal curve. We construct a universal tropical Jacobian over the moduli space of tropical curves…

Algebraic Geometry · Mathematics 2019-12-24 Alex Abreu , Sally Andria , Marco Pacini , Danny Taboada

In this paper, we study the moduli space of Higgs pairs, which can be considered as a generalization of holomorphic pairs. Higgs pairs are an example of quiver bundles. We introduce the notion of $\tau$-stability of Higgs pairs for…

Differential Geometry · Mathematics 2026-04-29 Jun Sasaki

In this paper we proof the existence of a linearization for singular principal G-bundles not depending on the base curve. This allow us to construct the relative compact moduli space of {\delta}-(semi)stable singular principal G-bundles…

Algebraic Geometry · Mathematics 2018-06-27 Ángel Luis Muñoz Castañeda

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

A module $M$ over the tropical semifield $T$ is analogous to a module over a field. We assume that $M$ is straight reflexive, and define the dimension of $M$ to the number of elements of a basis. We study the dimension of a straight…

Algebraic Geometry · Mathematics 2011-04-05 Shuhei Yoshitomi

In the spirit of the geometric approach to two-dimensional conformal field theory, we explicitly associate to every holomorphic vertex operator algebra a section of a power of Hodge line bundle on the moduli space of curves of arbitrary…

Quantum Algebra · Mathematics 2026-05-27 Sebastiano Carpi , Giulio Codogni

We study the connection between multimatroids and moduli spaces of rational curves with cyclic action. Multimatroids are generalizations of matroids and delta-matroids introduced by Bouchet, which naturally arise in topological graph…

Combinatorics · Mathematics 2024-03-01 Emily Clader , Chiara Damiolini , Christopher Eur , Daoji Huang , Shiyue Li

We give a canonical description of the formal moduli space of a vector bundle on a variety; as an application, we prove the closedness of certain differential forms on moduli corresponding to the trace form on the endomorphism algebra of…

alg-geom · Mathematics 2008-02-03 Ziv Ran

We consider some classical fibre bundles furnished with almost complex structures of twistor type, deduce their integrability in some cases and study \textit{self-holomorphic} sections of a \textit{symplectic} twistor space. With these we…

Differential Geometry · Mathematics 2011-12-15 Rui Albuquerque

We construct the moduli spaces of tropical curves and tropical principally polarized abelian varieties, working in the category of (what we call) stacky fans. We define the tropical Torelli map between these two moduli spaces and we study…

Algebraic Geometry · Mathematics 2010-11-24 Silvia Brannetti , Margarida Melo , Filippo Viviani

Let $P$ be the image of a period map. We discuss progress towards a conjectural Hodge theoretic completion $\overline{P}$, an analogue of the Satake-Baily-Borel compactification in the classical case. The set $\overline{P}$ is defined and…

Algebraic Geometry · Mathematics 2023-08-16 Mark Green , Phillip Griffiths , Radu Laza , Colleen Robles

In this paper we give an exposition of Dennis Johnson's work on the first homology of the Torelli groups and show how it can be applied, alone and in concert with Saito's theory of Hodge modules, to study the geometry of moduli spaces of…

alg-geom · Mathematics 2008-02-03 Richard M. Hain

We investigate properties of the Hodge metric of a mixed period domain. In particular, we calculate its curvature and the curvature of the Hodge bundles. We also consider when the pull back metric via a period map is K\"ahler. Several…

Algebraic Geometry · Mathematics 2017-04-13 Gregory Pearlstein , Chris Peters

Higgs bundles and non-abelian Hodge theory provide holomorphic methods with which to study the moduli spaces of surface group representations in a reductive Lie group G. In this paper we survey the case in which G is the isometry group of a…

Algebraic Geometry · Mathematics 2012-09-11 Steven B. Bradlow , Oscar Garcia-Prada , Peter B. Gothen