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Related papers: Higgs bundles and higher Teichm\"uller spaces

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Let G be a split semisimple algebraic group with trivial center. Let S be a compact oriented surface, with or without boundary. We define {\it positive} representations of the fundamental group of S to G(R), construct explicitly all…

Algebraic Geometry · Mathematics 2007-05-23 V. V. Fock , A. B. Goncharov

We define the quasi-compact Higgs $G^{\mathbb C}$-bundles over singular curves introduced in our previous paper for the Lie group SL($N$). The quasi-compact structure means that the automorphism groups of the bundles are reduced to the…

Mathematical Physics · Physics 2018-10-26 S. Kharchev , A. Levin , M. Olshanetsky , A. Zotov

Starting from the data of a nonsingular complex projective toric variety, we define an associated notion of toric co-Higgs bundle. We provide a Lie-theoretic classification of these objects by studying the interaction between Klyachko's fan…

Algebraic Geometry · Mathematics 2021-04-13 Indranil Biswas , Arijit Dey , Mainak Poddar , Steven Rayan

Let $k$ be an algebraic closure of a finite field of odd characteristic. We prove that for any rank two graded Higgs bundle with maximal Higgs field over a generic hyperbolic curve $X_1$ defined over $k$, there exists a lifting $X$ of the…

Algebraic Geometry · Mathematics 2016-04-22 Guitang Lan , Mao Sheng , Yanhong Yang , Kang Zuo

Teichmueller curves are geodesic discs in Teichmueller space that project to an algebraic curve in the moduli space $M_g$. We show that for all $g \geq 2$ Teichmueller curves map to the locus of real multiplication in the moduli space of…

Algebraic Geometry · Mathematics 2007-05-23 Martin Moeller

We construct a Petersson-Weil type K\"ahler form on the moduli spaces of Higgs bundles over a compact K\"ahler manifold. A fiber integral formula for this form is proved, from which it follows that the Petersson-Weil form is the curvature…

Algebraic Geometry · Mathematics 2007-05-23 Indranil Biswas , Georg Schumacher

This note announces the proof of a conjecture of H. Verlinde, according to which the spaces of Liouville conformal blocks and the Hilbert spaces from the quantization of the Teichm\"uller spaces of Riemann surfaces carry equivalent…

High Energy Physics - Theory · Physics 2015-06-26 J. Teschner

We consider the moduli space $\mathcal{M}(G)$ of $G$-Higgs bundles over a compact Riemann surface $X$, where $G$ is a complex semisimple Lie group. This is a hyperk\"ahler manifold homeomorphic to the moduli space $\mathcal{R}(G)$ of…

Algebraic Geometry · Mathematics 2019-04-24 Oscar Garcia-Prada , S. Ramanan

In this paper the moduli space of Higgs pairs over a fixed smooth projective curve with extra formal data is defined and it is endowed with a scheme structure. We introduce a relative version of the Krichever map using a fibration of Sato…

Algebraic Geometry · Mathematics 2007-12-14 D. Hernandez-Serrano , J. M. Muñoz Porras , F. J. Plaza Martin

We define and study the existence of very stable Higgs bundles on Riemann surfaces, how it implies a precise formula for the multiplicity of the very stable components of the global nilpotent cone and its relationship to mirror symmetry.…

Algebraic Geometry · Mathematics 2022-05-04 Tamas Hausel , Nigel Hitchin

Given an $n$-tuple of positive real numbers $\alpha$ we consider the hyperpolygon space $X(\alpha)$, the hyperk\"{a}hler quotient analogue to the K\"ahler moduli space of polygons in $\mathbb{R}^3$. We prove the existence of an isomorphism…

Algebraic Geometry · Mathematics 2015-03-17 Leonor Godinho , Alessia Mandini

In a previous paper, we introduced quasi-BPS categories for moduli stacks of semistable Higgs bundles. Under a certain condition on the rank, Euler characteristic, and weight, the quasi-BPS categories (called BPS in this case) are…

Algebraic Geometry · Mathematics 2024-09-18 Tudor Pădurariu , Yukinobu Toda

We explore relations between Higgs bundles that result from isogenies between low-dimensional Lie groups, with special attention to the spectral data for the Higgs bundles. We focus on isogenies onto $SO(4,C)$ and $SO(6,C)$ and their split…

Algebraic Geometry · Mathematics 2019-05-24 Steven B. Bradlow , Laura P. Schaposnik

Let $k$ be an algebraic closure of finite fields with odd characteristic $p$ and a smooth projective scheme $\mathbf{X}/W(k)$. Let $\mathbf{X}^0$ be its generic fiber and $X$ the closed fiber. For $\mathbf{X}^0$ a curve Faltings conjectured…

Algebraic Geometry · Mathematics 2013-11-22 Guitang Lan , Mao Sheng , Kang Zuo

We explore the role of Vinberg pairs defined by cyclic gradings of a semisimple complex Lie algebra in the context of Higgs bundle theory.

Algebraic Geometry · Mathematics 2023-09-28 Oscar García-Prada

There is an isomorphism between the moduli spaces of $\sigma$-stable holomorphic triples and some of the critical submanifolds of the moduli space of $k$-Higgs bundles of rank three, whose elements $(E,\varphi^k)$ correspond to variations…

Algebraic Geometry · Mathematics 2020-09-01 Ronald A. Zúñiga-Rojas

The purpose of this note is to give a simple proof of the fact that a certain substack, defined in [2], of the moduli stack $T^{\ast}Bun_G(\Sigma)$ of Higgs bundles over a curve $\Sigma$, for a connected, simply connected semisimple group…

Algebraic Geometry · Mathematics 2017-05-05 Yu Li

We extend the Donaldson-Corlette-Hitchin-Simpson correspondence between Higgs bundles and flat connections on compact K\"ahler manifolds to compact quasi-regular Sasakian manifolds. A particular consequence is the translation of…

Differential Geometry · Mathematics 2016-12-20 Indranil Biswas , Mahan Mj

For the moduli space of Higgs bundles on a Riemann surface of positive genus, critical points of the natural Morse-Bott function lie along the nilpotent cone of the Hitchin fibration and are representations of $\mbox{A}$-type quivers in a…

Algebraic Geometry · Mathematics 2017-02-28 Steven Rayan

Let $M$ be a compact complex manifold equipped with a Gauduchon metric. If $TM$ is holomorphically trivial, and (V, \theta) is a stable SL(r,{\mathbb C})-Higgs bundle on $M$, then we show that $\theta= 0$. We show that the correspondence…

Algebraic Geometry · Mathematics 2010-11-16 Indranil Biswas