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Related papers: Counting twisted Higgs bundles

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Higgs bundles appeared a few decades ago as solutions to certain equations from physics and have attracted much attention in geometry as well as other areas of mathematics and physics. Here, we take a very informal stroll through some…

Algebraic Geometry · Mathematics 2026-03-09 Steven Rayan , Laura P. Schaposnik

We construct vector-valued modular forms on moduli spaces of curves and abelian varieties using effective divisors in projectivized Hodge bundles over moduli of curves. Cycle relations tell us the weight of these modular forms. In…

Algebraic Geometry · Mathematics 2023-09-07 Gerard van der Geer , Alexis Kouvidakis

We study the moduli of anti-invariant Higgs bundles as introduced by Zelaci. Using recent existence results of Alper, Halpern-Leistner and Heinloth we establish the existence of a separated good moduli space for semistable anti-invariant…

Algebraic Geometry · Mathematics 2024-09-10 Karim Réga

The moduli space of Higgs bundles can be constructed as a quotient of an infinite-dimensional space and hence admits an orbit type decomposition. In this paper, we show that the orbit type decomposition is a complex Whitney stratification…

Differential Geometry · Mathematics 2020-05-29 Yue Fan

We provide an algebraic framework for quantization of Hermitian metrics that are solutions of the Hitchin equation for Higgs bundles over a projective manifold. Using Geometric Invariant Theory, we introduce a notion of balanced metrics in…

Differential Geometry · Mathematics 2016-01-20 Mario Garcia-Fernandez , Julien Keller , Julius Ross

The moduli space of stable Higgs bundles of degree $0$ is equipped with the hyperk\"ahler metric, called the Hitchin metric. On the locus where the spectral curves are smooth, there is the hyperk\"ahler metric called the semi-flat metric,…

Differential Geometry · Mathematics 2026-01-29 Takuro Mochizuki

We construct a new compactification of the moduli space H_g of smooth hyperelliptic curves of genus g. We compare our compactification with other well-known remarkable compactifications of H_g .

Algebraic Geometry · Mathematics 2007-06-13 Marco Pacini

Let $X$ be a smooth projective curve over a field of characteristic zero and let $D$ be a non-empty set of rational points of $X$. We calculate the motivic classes of moduli stacks of semistable parabolic bundles with connections on $(X,D)$…

Algebraic Geometry · Mathematics 2020-07-28 Roman Fedorov , Alexander Soibelman , Yan Soibelman

We prove that the Picard group of the moduli space of semistable G-bundles on any irreducible smooth projective curve is isomorphic with the group of integers.

alg-geom · Mathematics 2008-02-03 Shrawan Kumar , M. S. Narasimhan

This paper provides an introduction to non-abelian Hodge theory and moduli spaces of Higgs bundles on compact Riemann surfaces. We develop the moduli theory of vector bundles and Higgs bundles, establish the main correspondences of…

Algebraic Geometry · Mathematics 2026-01-14 Guillermo Gallego

Let $X$ be a smooth projective curve of genus $g\geq 2$ over the complex numbers. A holomorphic triple $(E_1,E_2,\phi)$ on $X$ consists of two holomorphic vector bundles $E_1$ and $E_2$ over $X$ and a holomorphic map $\phi:E_2 \to E_1$.…

Algebraic Geometry · Mathematics 2012-09-18 Vicente Muñoz

We introduce quasi-BPS categories for twisted Higgs bundles, which are building blocks of the derived category of coherent sheaves on the moduli stack of semistable twisted Higgs bundles over a smooth projective curve. Under some condition…

Algebraic Geometry · Mathematics 2024-08-06 Tudor Pădurariu , Yukinobu Toda

This paper describes the structure of the moduli space of holomorphic curves and constructs Gromov Witten invariants in the category of exploded manifolds. This includes defining Gromov Witten invariants relative to normal crossing divisors…

Symplectic Geometry · Mathematics 2011-02-02 Brett Parker

Let $\ix$ be a smooth Deligne-Mumford stack over the complex numbers. One can define twisted orbifold Gromov-Witten invariants of $\ix$ by considering multiplicative invertible characteristic classes of various bundles on the moduli spaces…

Algebraic Geometry · Mathematics 2016-07-15 Valentin Tonita

We describe the torus fixed locus of the moduli space of stable sheaves with Hilbert polynomial $4m+1$ on the projective plane. We determine the torus representation of the tangent spaces at the fixed points, which leads to the computation…

Algebraic Geometry · Mathematics 2016-01-20 Jinwon Choi , Mario Maican

In this paper, we investigate the geometry of the base complex manifold of an effectively parametrized holomorphic family of stable Higgs bundles over a fixed compact K\"{a}hler manifold. The starting point of our study is…

Differential Geometry · Mathematics 2021-07-28 Zhi Hu , Pengfei Huang

On a complex curve, we establish a correspondence between integrable connections with irregular singularities, and Higgs bundles such that the Higgs field is meromorphic with poles of any order. The moduli spaces of these objects are…

Differential Geometry · Mathematics 2007-05-23 Olivier Biquard , Philip Boalch

Let \(X\) be an irreducible smooth complex projective variety, and let \(G\) be a connected reductive linear algebraic group over \(\mathbb{C}\). In this paper, we first classify integrable transitive algebraic Lie algebroids on $X$. We…

Algebraic Geometry · Mathematics 2026-05-19 Samit Ghosh , Arjun Paul

We define a new class of holomorphic (n-1)-bundles on the n-dimensional complex projective space, that contains the Tango bundles and their stable Horrock's pull-backs; we show that these bundles are invariant under small deformations and…

Algebraic Geometry · Mathematics 2007-05-23 Paolo Cascini

We consider the Higgs sector of multi-Higgs-doublet models in the presence of simple symmetries relating the various fields. We construct basis invariant observables which may in principle be used to detect these symmetries for any number…

High Energy Physics - Phenomenology · Physics 2010-04-15 P. M. Ferreira , Joao P. Silva