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Related papers: Universal Hitchin moduli spaces

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We construct the hyper-K\"ahler moduli space of framed monopoles over $\mathbb{R}^3$ for any connected, simply connected, compact, semisimple Lie group and arbitrary mass and charge, and hence symmetry breaking. In order to do so, we define…

Differential Geometry · Mathematics 2024-08-07 Jaime Mendizabal

The present article studies the class of Einstein-Hermitian harmonic maps of constant Kaehler angle from the projective line into quadrics. We provide a description of their moduli spaces up to image, and gauge-equivalence using the…

Differential Geometry · Mathematics 2017-05-19 Oscar Macia , Yasuyuki Nagatomo

From a view point of the moment map, we shall introduce the notion of Einstein-Hermitian generalized connections over a generalized K\"ahler manifold of symplectic type. We show that moduli spaces of Einstein-Hermitian generalized…

Differential Geometry · Mathematics 2017-07-12 Ryushi Goto

For a canonical formulation of quantum gravity, the superspace of all possible 3-geometries on a Cauchy hypersurface of a 3+1-dimensional Lorentzian manifold plays a key role. While in the analogous 2+1-dimensional case the superspace of…

General Relativity and Quantum Cosmology · Physics 2016-01-27 M. Rainer

The Hitchin-Simpson equations are first-order non-linear equations for a pair consisting of a connection and a Higgs field. In this paper, we study the behavior of sequences of solutions to the Hitchin-Simpson equations on closed K\"ahler…

Differential Geometry · Mathematics 2024-10-28 Siqi He

We prove estimates for the sectional curvature of hyperkaehler quotients and give applications to moduli spaces of solutions to Nahm's equations and Hitchin's equations.

Differential Geometry · Mathematics 2007-05-23 Roger Bielawski

We first describe the action of the fundamental group of a closed surface of variable negative curvature on the oriented geodesics in its universal covering in terms of a naturally-defined flat connection whose holonomy lies in the group of…

Differential Geometry · Mathematics 2022-05-06 Nigel Hitchin

We give an explicit geometric structures interpretation of the $G_2'$-Hitchin component $Hit(S, G_2') \subset \chi(\pi_1S,G_2')$ of a closed oriented surface $S$ of genus $g \geq 2$. In particular, we prove $Hit(S, G_2')$ is naturally…

Differential Geometry · Mathematics 2024-05-08 Parker Evans

We consider the moduli space of semistable Higgs bundles on a smooth projective curve. Motivated by mirror symmetry, Hausel and Hitchin showed that over an open of the locus of smooth Hitchin fibers, the duality of Donagi-Pantev intertwines…

Algebraic Geometry · Mathematics 2025-04-08 David Fang

We construct coarse moduli spaces of semiquasihomogeneous hypersurface singularities with respect to right equivalence and contact equivalence. We have to fix the principal part of the semiquasihomogeneous singularities. For the moduli…

alg-geom · Mathematics 2008-02-03 G. -M. Greuel , C. Hertling , G. Pfister

This paper is the first step in a systematic project to study examples of K\"ahler manifolds with positive holomorphic sectional curvature ($H > 0$). Previously Hitchin proved that any compact K\"ahler surface with $H>0$ must be rational…

Differential Geometry · Mathematics 2023-03-31 Bo Yang , Fangyang Zheng

We prove a Hitchin-Kobayashi correspondence for extensions of Higgs bundles. The results generalize known results for extensions of holomorphic bundles. Using Simpson's methods, we construct moduli spaces of stable objects. In an appendix…

Algebraic Geometry · Mathematics 2007-05-23 Steven B. Bradlow , Tomas L. Gomez

In 2009 Gaiotto, Moore and Neitzke presented a new construction of hyperk\"{a}hler metrics on the total spaces of certain complex integrable systems, represented as a torus fibration $\mathcal{M}$ over a base space $\mathcal{B}$, except for…

Differential Geometry · Mathematics 2017-01-31 César Garza

Our aim in this work is to study a system of equations which generalises at the same time the vortex equations of Yang-Mills-Higgs theory and the holomorphicity equation in Gromov theory of pseudoholomorphic curves. We extend some results…

Symplectic Geometry · Mathematics 2007-05-23 Ignasi Mundet i Riera

In this paper we construct a special geometry over the moduli space of type II string vacua with both NS and RR fluxes turning on. Depending on what fluxes are turning on we divide into three cases of moduli space of generalized structures.…

High Energy Physics - Theory · Physics 2008-06-23 Boyu Hou , Sen Hu , Yanhong Yang

We study two instanton correction problems of Hitchin's moduli spaces along with their wall crossing formulas. The hyperkahler metric of a Hitchin's moduli space can be put into an instanton-corrected form according to physicists Gaiotto,…

Algebraic Geometry · Mathematics 2011-04-22 Wenxuan Lu

We associate to each stable Higgs pair $(A_0,\Phi_0)$ on a compact Riemann surface $X$ a singular limiting configuration $(A_\infty,\Phi_\infty)$, assuming that $\det \Phi$ has only simple zeroes. We then prove a desingularization theorem…

Differential Geometry · Mathematics 2016-09-07 Rafe Mazzeo , Jan Swoboda , Hartmut Weiss , Frederik Witt

We study the moduli spaces of flat SL(r)- and PGL(r)-connections, or equivalently, Higgs bundles, on an algebraic curve. These spaces are noncompact Calabi-Yau orbifolds; we show that they can be regarded as mirror partners in two different…

Algebraic Geometry · Mathematics 2009-11-07 Tamas Hausel , Michael Thaddeus

The goal of this paper is to give an explicit description of the integrable structure of the Hitchin moduli spaces. This is done by introducing explicit parameterisations for the different strata of the Hitchin moduli spaces, and by…

Differential Geometry · Mathematics 2025-04-23 Duong Dinh , Joerg Teschner

In \cite{B3}, Bridgeland defined a geometric structure, named a Joyce structure, conjectured to exist on the space $M$ of stability conditions of a $CY_3$ triangulated category. Given a non-degeneracy assumption, a feature of this structure…

Differential Geometry · Mathematics 2024-09-11 Maciej Dunajski , Timothy Moy
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