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48 results for Hitchin connection

This paper shows connections between two complex mathematical theories are equivalent.

problem Establishing equivalence between two complex mathematical theories.
method Using geometric quantisation and conformal field theory, the paper establishes equivalence between the Hitchin connection and the Knizhnik-Zamolodchikov connection.
result The Hitchin and Knizhnik-Zamolodchikov connections are projectively equivalent in genus zero.

In this paper we calculate the curvature of the Hitchin connection. We further show that a slight (possibly trivial) modification of the Hitchin connection has curvature equal to an explict given multiple of the Weil-Petersen symplectic form on Teichmüller space.

2016-09-05abs ↗pdf ↗

Study shows how SL2\operatorname{SL}_2 Hitchin connection at level four behaves.

problem Understanding the behavior of SL2\operatorname{SL}_2 Hitchin connection at level four.
method Using Mumford-Welters connections and equivariant conformal embeddings, the connection's monodromy is shown to be finite.
result The monodromy of the SL2\operatorname{SL}_2 Hitchin connection at level four is finite.

Study the geometry of twistor spaces with rotating circle action.

problem Holomorphic symplectic geometry of twistor spaces.
method Interpreting Hitchin's meromorphic connection and studying critical points of moment maps.
result Residue of Hitchin's meromorphic connection serves as a moment map for the circle action.

The paper studies sequences of solutions to Hitchin-Simpson equations on Kähler manifolds.

problem Behavior of sequences of solutions to Hitchin-Simpson equations on Kähler manifolds.
method Compactness result for connections and renormalized Higgs fields.
result Every Z/2\mathbb{Z}/2 harmonic 1-form can be deformed into a sequence of solutions.

We study hyperkahler metrics and hyperholomorphic connections of Hitchin's moduli spaces after Gaiotto, Moore and Neitzke. Their construction via the twistor technique produces intricate wall crossing behaviors. For certain four dimensional Hitchin's moduli spaces local models and degeneration to local models near sing…

2012-08-18abs ↗pdf ↗

By referring to theorems of Donaldson and Hitchin, we exhibit a rigorous AdS/CFT-type correspondence between classical 2+1 dimensional vacuum general relativity theory on S x R and SO(3) Hitchin theory (regarded as a classical conformal field theory) on the spacelike past boundary S, a compact, oriented Riemann surface…

2006-05-22abs ↗pdf ↗

The paper proves a spin manifold's 4D quasi-Einstein satisfies Hitchin-Thorpe inequality.

problem Proving a specific inequality for a class of 4D manifolds.
method Analyzing properties of gradient mm-quasi-Einstein manifolds, focusing on spin structures.
result Compact 4D spin gradient mm-quasi-Einstein manifolds satisfy the Hitchin-Thorpe Inequality when m1m\ge 1.

Proves existence of flat connection on theta functions for G-bundles.

problem Existence of flat connections on nonabelian theta functions for G-bundles.
method Proves existence of a flat projective connection on nonabelian theta functions on moduli space of parabolic G-bundles.
result Existence of a flat projective connection on nonabelian theta functions for parabolic G-bundles.

We give a direct calculation of the curvature of the Hitchin connection, in geometric quantization on a symplectic manifold, using only differential geometric techniques. In particular, we establish that the curvature acts as a first-order operator on the quantum spaces. Projective flatness follows if the Kähler struct…

2014-09-03abs ↗pdf ↗

We show that 3D gravity, in its pure connection formulation, admits a natural 6D interpretation. The 3D field equations for the connection are equivalent to 6D Hitchin equations for the Chern-Simons 3-form in the total space of the principal bundle over the 3-dimensional base. Turning this construction around one gets …

2016-05-24abs ↗pdf ↗

Develops correlation number for specific potentials and Hitchin representations.

problem Analyzing correlation numbers for potentials with entropy gaps and Hitchin representations.
method Defines a correlation number for pairs of cusped Hitchin representations and explores its connection to the Manhattan curve.
result Establishes a connection between the correlation number and the Manhattan curve, revealing rigidity properties.

Characterizes flag geometries for Hitchin representations in SL3(R).

problem Understanding flag geometries associated with Hitchin representations in SL3(R).
method Geometric characterization based on invariant foliations and refraction flows.
result Constructs refraction flows for positive roots in general sl_n(R), with highest root flows being C^1+α.

We study a natural functional on the space of holomorphic sections of the Deligne-Hitchin moduli space of a compact Riemann surface, generalizing the energy of equivariant harmonic maps corresponding to twistor lines. We give a link to a natural meromorphic connection on the hyperholomorphic line bundle recently constr…

2019-03-06abs ↗pdf ↗

Study on Higgs bundles and hyperpolygon spaces using Hitchin metrics.

problem Investigating the Hitchin metric on moduli spaces of Higgs bundles.
method Using Hitchin hyperkähler metric and parabolic Deligne-Hitchin moduli space.
result Rescaled Hitchin metric converges to hyperpolygon space's hyperkähler metric in the semiclassical limit.

We extend the Donaldson-Corlette-Hitchin-Simpson correspondence between Higgs bundles and flat connections on compact Kähler manifolds to compact quasi-regular Sasakian manifolds. A particular consequence is the translation of restrictions on Kähler groups proved using the Donaldson-Corlette-Hitchin-Simpson corresponde…

2016-07-25abs ↗pdf ↗

We explore extensions to SL(n,C)\operatorname{SL}(n,\mathbb{C})-Chern-Simons theory of some results obtained for SU(n)\operatorname{SU}(n)-Chern-Simons theory via the asymptotic properties of the Hitchin connection and its relation to Toeplitz operators developed previously by the first named author. We define a formal Hitchin…

2018-05-13abs ↗pdf ↗

This article is the second of a pair of articles about the Goldman symplectic form on the PGL(V)-Hitchin component of a closed, connected, oriented, hyperbolic surface S. We show that any ideal triangulation on S and any compatible bridge system determine a symplectic trivialization of the tangent bundle to the PGL(V)-…

2017-09-11abs ↗pdf ↗

Constructs a new geometric structure on surfaces to generalize Teichmüller theory.

problem Exploring new geometric structures in Teichmüller theory.
method Uses the punctual Hilbert scheme of the plane to construct a higher complex structure and explores its properties.
result Establishes a canonical diffeomorphism between the moduli space of higher complex structures and Hitchin's component.

The Hitchin component is a connected component of the character variety of reductive group homomorphisms from the fundamental group of a closed surface S of genus greater than 1 to the Lie group PSL_m(R). The Teichmuller space of S naturally embeds into the Hitchin component. The limit points in the Thurston compactifi…

2019-10-29abs ↗pdf ↗

We prove an extension of Basmajian's identity to nn-Hitchin representations of compact bordered surfaces. For n=3n=3, we show that this identity has a geometric interpretation for convex real projective structures analogous to Basmajian's original result. As part of our proof, we demonstrate that, with respect to the L…

2015-04-02abs ↗pdf ↗

In this paper we provide a review of asymptotic results of Toeplitz operators and their applications in TQFT. To do this we review the differential geometric construction of the Hitchin connection on a prequantizable compact symplectic manifold. We use asymptotic results relating the Hitchin connec- tion and Toeplitz o…

2011-06-08abs ↗pdf ↗

We define Hitchin's moduli space for a principal bundle PP, whose structure group is a compact semisimple Lie group KK, over a compact non-orientable Riemannian manifold MM. We use the Donaldson-Corlette correspondence, which identifies Hitchin's moduli space with the moduli space of flat KCK^\mathbb{C}-connections,…

2012-11-05abs ↗pdf ↗

We give a differential geometric construction of a connection in the bundle of quantum Hilbert spaces arising from half-form corrected geometric quantization of a prequantizable, symplectic manifold, endowed with a rigid, family of Kähler structures, all of which give vanishing first Dolbeault cohomology groups. In [An…

2007-11-26abs ↗pdf ↗

The article describes canonical metrics on holomorphic fibre bundles.

problem Existence of canonical metrics on isotrivial Kähler fibrations.
method Induced from Hermite--Einstein connections on holomorphic principal bundles.
result Existence of optimal symplectic connections when principal bundles are polystable.

Introduces Fock bundles for studying surface group character varieties.

problem Character varieties of surface groups without fixed complex structures.
method Introduces Fock bundles as smooth principal bundles with special adjoint-valued 1-forms, constructs canonical connections, and solves non-linear PDEs.
result Explicit solutions for Fock bundles in the Fuchsian locus map to the Hitchin component.

Using Hitchin's parameterization of the Hitchin-Teichmüller component of the SL(n,R)SL(n,\mathbb{R}) representation variety, we study the asymptotics of certain families of representations. In fact, for certain Higgs bundles in the SL(n,R)SL(n,\mathbb{R})-Hitchin component, we study the asymptotics of the Hermitian metric solvin…

2014-05-06abs ↗pdf ↗

This paper connects real closed fields to Hitchin representations and their properties.

problem Understanding representations of surface groups over real closed fields.
method Tarski-Seidenberg transfer principle and multiplicative Bonahon-Dreyer coordinates.
result Hitchin representations correspond to F\mathbb{F}-positive representations over real closed fields.

We prove an analogue of the Hitchin-Kobayashi correspondence for compact, oriented, taut Riemannian foliated manifolds with transverse Hermitian structure. In particular, our Hitchin-Kobayashi theorem holds on any compact Sasakian manifold. We define the notion of stability for foliated Hermitian vector bundles with tr…

2018-02-27abs ↗pdf ↗

We prove that the Hitchin parametrization provides geodesic coordinates at the Fuchsian locus for the pressure metric in the Hitchin component H3(S)\mathcal{H}_{3}(S) of surface group representations into PSL(3,R)PSL(3,\mathbb{R}). The proof consists of the following elements: we compute first derivatives of the pressure metric…

2019-10-02abs ↗pdf ↗

Study of limiting configurations for SU(1,2) Hitchin equation solutions.

problem Analyzing the behavior of solutions to the Hitchin equation for SU(1,2) Higgs bundles.
method Gluing construction and analysis of spectral data, focusing on limiting configurations.
result The limiting behavior of solutions is described by a metric on a Hecke modification of VV singular at DD.

We prove a very general Kobayashi-Hitchin correspondence on arbitrary compact Hermitian manifolds. This correspondence refers to moduli spaces of "universal holomorphic oriented pairs". Most of the classical moduli problems in complex geometry (e. g. holomorphic bundles with reductive structure groups, holomorphic pair…

2004-02-21abs ↗pdf ↗

An introduction to the theory of bundle gerbes and their relationship to Hitchin-Chatterjee gerbes is presented. Topics covered are connective structures, triviality and stable isomorphism as well as examples and applications.

2007-12-11abs ↗pdf ↗

Canonical maps connect complex structures to Hitchin components.

problem Connecting higher complex structures to Hitchin components.
method Equivariant vector bundle construction and canonical isomorphisms.
result Canonical diffeomorphisms between spaces of higher complex structures and Hitchin components.