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Geometric structures on manifolds became popular when Thurston used them in his work on the geometrization conjecture. They were studied by many people and they play an important role in higher Teichm\"uller theory. Geometric structures on…

Algebraic Geometry · Mathematics 2019-05-14 Daniele Alessandrini

We introduce the moduli space of quasi-parabolic $SL(2,\mathbb{C})$-Higgs bundles over a compact Riemann surface $\Sigma$ and consider a natural involution, studying its fixed point locus when $\Sigma$ is $\mathbb{C} \mathbb{P}^1$ and…

Algebraic Geometry · Mathematics 2021-04-06 Leonor Godinho , Alessia Mandini

Let $\mathcal{X} \subset \mathbb{P}_k^d$ be Drinfeld's halfspace over a finite field $k$ and let $\mathcal{E}$ be a homogeneous vector bundle on $\mathbb{P}_k^d$. The paper deals with two different descriptions of the space of global…

Algebraic Geometry · Mathematics 2021-12-02 Sascha Orlik

In this paper, we study Higgs bundles on non-compact Hermitian manifolds. Under some assumptions for the underlying Hermitian manifolds which are not necessarily K\"ahler, we solve the Hermitian-Einstein equation on analytically stable…

Differential Geometry · Mathematics 2019-07-16 Chuanjing Zhang , Xi Zhang

We study Nahm transformation for parabolic Higgs bundles on the projective line \PP^1, with logarithmic singularities on a finite set P. Such a Higgs bundle can be given by its spectral data: a Hirzebruch surface Z together with a coherent…

Algebraic Geometry · Mathematics 2014-12-17 K. Aker , Sz. Szabo

We prove a criterion for the existence of harmonic metrics on Higgs bundles that are defined on smooth loci of klt varieties. As one application, we resolve the quasi-etale uniformisation problem for minimal varieties of general type to…

Algebraic Geometry · Mathematics 2021-03-17 Daniel Greb , Stefan Kebekus , Thomas Peternell , Behrouz Taji

We prove the Topological Mirror Symmetry Conjecture by Hausel-Thaddeus for smooth moduli spaces of Higgs bundles of type $\operatorname{SL}_n$ and $\operatorname{PGL}_n$. More precisely, we establish an equality of stringy Hodge numbers for…

Algebraic Geometry · Mathematics 2019-10-29 Michael Groechenig , Dimitri Wyss , Paul Ziegler

We derive conjectures, called genus 1 Enumerative mirror symmetry for moduli spaces of Higgs bundles, which relate curve-counting invariants of moduli spaces of Higgs $\mathrm{SL}_r$-bundles to curve-counting invariants of moduli spaces of…

Algebraic Geometry · Mathematics 2023-06-28 Denis Nesterov

Let $X$ be a smooth projective variety over $\mathbb C$. We prove that a twisted Higgs vector bundle $(\calE\, ,\theta)$ on $X$ admits an Einstein--Hermitian connection if and only if $(\calE\, ,\theta)$ is polystable. A similar result for…

Algebraic Geometry · Mathematics 2010-08-13 Indranil Biswas , Tomas L. Gomez , Norbert Hoffmann , Amit Hogadi

We show that the "eigenbundle" (localization bundle) of certain Hilbert modules over bounded symmetric domains of rank r is a "singular" vector bundle (linearly fibrered complex analytic space) which decomposes as a stratified sum of…

Functional Analysis · Mathematics 2022-04-27 Harald Upmeier

The central result of this paper is an identification of the shifted Cartier dual of the moduli stack $\mathcal{M}_{\mathfrak{g}}(C)$ of $\widetilde{G}$-Higgs bundles on $C$ of arbitrary degree (modulo shifts by $Z(\widetilde{G})$) with a…

Algebraic Geometry · Mathematics 2021-09-16 Richard Derryberry

We shall construct a natural Higgs bundle structure on the complexified K\"ahler cone of a compact K\"ahler manifold, which can be seen as an analogy of the classical Higgs bundle structure associated to a variation of Hodge structure. In…

Complex Variables · Mathematics 2016-12-13 Xu Wang

We prove that the number of indecomposable vector bundles of fixed rank r and degree d over a smooth projective curve X defined over a finite field is given by a polynomial (depending only on the pair (r,d) and the genus g of X) in the Weil…

Algebraic Geometry · Mathematics 2014-10-07 Olivier Schiffmann

We use bundle gerbes and their connections and curvings to obtain an explicit formula for a de Rham representative of the string class of a loop group bundle. This is related to earlier work on calorons.

Differential Geometry · Mathematics 2009-11-07 M. K. Murray , D. Stevenson

We consider the moduli space of vector bundles of rank $n$ and degree $ng$ over a fixed Riemann surface of genus $g\geq 2$. We use the explicit parametrization in terms of the Tyurin data. In the moduli space there is a "non-abelian" Theta…

Algebraic Geometry · Mathematics 2024-03-01 Marco Bertola , Chaya Norton , Giulio Ruzza

We give an explicit formula for Euler characteristics of line bundles on the Hilbert scheme of points on $\mathbb{P}^1\times\mathbb{P}^1$. Combined with structural results of Ellingsrud, G\"ottsche, and Lehn, this determines the Euler…

Algebraic Geometry · Mathematics 2024-05-02 Ian Cavey

Parabolic triples of the form $(E_*,\theta,\sigma)$ are considered, where $(E_*,\theta)$ is a parabolic Higgs bundle on a given compact Riemann surface $X$ with parabolic structure on a fixed divisor $S$, and $\sigma$ is a nonzero section…

Algebraic Geometry · Mathematics 2009-11-10 Indranil Biswas , Avijit Mukherjee

We study moduli spaces of Higgs bundles with two poles on an elliptic curve. We describe all singular fibers of the Hitchin map, including the nilpotent cone. To achieve this, we consider a modular map that lifts Higgs bundles with five…

Algebraic Geometry · Mathematics 2026-02-18 Thiago Fassarella , Frank Loray

We discuss the K\"ahler quantization of moduli spaces of vortices in line bundles over compact surfaces $\Sigma$. This furnishes a semiclassical framework for the study of quantum vortex dynamics in the Schr\"odinger-Chern-Simons model. We…

Mathematical Physics · Physics 2020-05-13 Dennis Eriksson , Nuno M. Romão

We explain how Teleman quantization can be applied to moduli spaces of quiver representations to compute the higher cohomology of the endomorphism bundle of the universal bundle. We use this to prove Schofield's partial tilting conjecture,…

Algebraic Geometry · Mathematics 2023-12-06 Pieter Belmans , Ana-Maria Brecan , Hans Franzen , Gianni Petrella , Markus Reineke
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