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Using twistor methods we derive a generating function which leads to the hyperk\" ahler metric on a deformation of the Atiyah-Hitchin monopole moduli space. This deformation was first considered by Dancer through the quotient construction…

高能物理 - 理论 · 物理学 2009-10-30 Gordon Chalmers

This is the first in a series of papers in which we develop a twistor-based method of constructing hyperkaehler metrics from holomorphic functions and elliptic curves. As an application, we revisit the Atiyah-Hitchin manifold and derive in…

微分几何 · 数学 2008-01-05 Radu A. Ionas

We revisit construction of the Atiyah-Hitchin manifold in the generalized Legendre transform approach. This is originally studied by Ivanov and Rocek and is subsequently investigated more by Ionas, in the latter of which the explicit forms…

高能物理 - 理论 · 物理学 2023-06-28 Masato Arai , Kurando Baba , Radu A. Ionas

We give a simple geometric description of all formal deformation quantizations on a K\"ahler manifold $M$ which enjoy the following property of separation of variables into holomorphic and antiholomorphic ones. For each open subset…

高能物理 - 理论 · 物理学 2015-04-21 Karabegov Alexander

In this article we study the stability problem for positive quaternion-K\"ahler manifolds. We give a description of infinitesimal Einstein deformations and destabilising directions in terms of Laplace eigenfunctions and a special class of…

微分几何 · 数学 2026-04-03 Yasushi Homma , Uwe Semmelmann

Based on the systematic Hamiltonian and superfield approaches we construct the deformed $\mathcal{N}=4,8$ supersymmetric mechanics on K\"ahler manifolds interacting with constant magnetic field, and study their symmetries. At first we…

高能物理 - 理论 · 物理学 2020-01-15 Evgeny Ivanov , Armen Nersessian , Stepan Sidorov , Hovhannes Shmavonyan

In this paper, we construct metallic K\"ahler and nearly metallic K\"ahler structures on Riemanian manifolds. For such manifolds with these structures, we study curvature properties. Also we describe linear connections on the manifold,…

综合数学 · 数学 2019-07-02 Sibel Turanli , Aydin Gezer , Hasan Cakicioglu

We study the non-relativity for two real analytic K\"ahler manifolds and complex space forms of three types. The first one is a K\"ahler manifold whose polarization of local K\"ahler potential is a Nash function in a local coordinate. The…

复变函数 · 数学 2020-05-08 Xiaoliang Cheng , Yihong Hao

Deformation quantization and geometric quantization on K\"ahler manifolds give the mathematical description of the algebra of quantum observables and the Hilbert spaces respectively, where the later forms a representation of quantum…

微分几何 · 数学 2020-10-28 Naichung Conan Leung , Qin Li , Ziming Nikolas Ma

We study an eigenvalue problem for the Laplacian on a compact K\"{a}hler manifold. Considering the $k$-th eigenvalue $\lambda_{k}$ as a functional on the space of K\"{a}hler metrics with fixed volume on a compact complex manifold, we…

微分几何 · 数学 2024-11-27 Kazumasa Narita

The space of K\"ahler potentials in a compact K\"ahler manifold, endowed with Mabuchi's metric, is an infinite dimensional Riemannian manifold. We characterize local isometries between spaces of K\"ahler potentials, and prove existence and…

复变函数 · 数学 2019-08-16 László Lempert

The property of admitting an astheno-K\"ahler metric is not stable under the action of small deformations of the complex structure of a compact complex manifold. In this paper, we prove necessary cohomological conditions for the existence…

微分几何 · 数学 2023-05-08 Tommaso Sferruzza

We calculate the K\"ahler potential for the Samols metric on the moduli space of Abelian Higgs vortices on $\mathbbm{R}^{2}$, in two different ways. The first uses a scaling argument. The second is related to the Polyakov conjecture in…

高能物理 - 理论 · 物理学 2009-11-10 Heng-Yu Chen , N. S. Manton

In this note, we shall prove geodesic convexity of the space of K\"ahler potentials on an ALE K\"ahler manifold. This extends earlier results in the compact case proved in the fundamental work of X-X. Chen. We further prove the boundedness…

微分几何 · 数学 2014-02-04 S. Ali Aleyasin

We give an account of old and new results concerning many types of non-K\"ahler metrics, with focus on the problem of their coexistence on compact complex manifolds, and their behaviour at deformations and blow-up. We also describe a…

微分几何 · 数学 2025-05-06 Liviu Ornea , Miron Stanciu

We formulate a correspondence between affine and projective special K\"ahler manifolds of the same dimension. As an application, we show that, under this correspondence, the affine special K\"ahler manifolds in the image of the rigid r-map…

微分几何 · 数学 2018-01-17 Vicente Cortés , Peter-Simon Dieterich , Thomas Mohaupt

Motivated by the geometry of Levi degenerate CR hypersurfaces, we define a pre-K\"ahler structure on a complex manifold as a pre-symplectic structure compatible with the almost complex structure, i.e. a closed (1,1)-form. Extending Freeman…

微分几何 · 数学 2025-05-16 Omid Makhmali , David Sykes

We give an explicit formula for the quaternionic K\"ahler metrics obtained by the HK/QK correspondence. As an application, we give a new proof of the fact that the Ferrara-Sabharwal metric as well as its one-loop deformation is quaternionic…

微分几何 · 数学 2015-03-31 Dmitri V. Alekseevsky , Vicente Cortés , Malte Dyckmanns , Thomas Mohaupt

We present a simple geometric construction linking geometric to deformation quantization. Both theories depend on some apparently arbitrary parameters, most importantly a polarization and a symplectic connection, and for real polarizations…

数学物理 · 物理学 2009-07-06 Christoph Nölle

Given a compact K\"ahler manifold $(X,\omega_0)$ let $\mathcal H_{0}$ be the set of K\"ahler forms cohomologous to $\omega_0$. As observed by Mabuchi \cite{m}, this space has the structure of an infinite dimensional Riemannian manifold, if…

复变函数 · 数学 2017-12-15 Tamás Darvas
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