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We investigate quantization properties of Hermitian metrics on holomorphic vector bundles over homogeneous compact K\"ahler manifolds. This allows us to study operators on Hilbert function spaces using vector bundles in a new way. We show…

算子代数 · 数学 2019-03-14 Andreas Andersson

We give the general presciption for calculating the moduli of irreducible, stable SU(n) holomorphic vector bundles with positive spectral covers over elliptically fibered Calabi-Yau threefolds. Explicit results are presented for Hirzebruch…

高能物理 - 理论 · 物理学 2014-11-18 Evgeny Buchbinder , Ron Donagi , Burt A. Ovrut

We study equations on a principal bundle over a compact complex manifold coupling a connection on the bundle with a Kahler structure on the base. These equations generalize the conditions of constant scalar curvature for a Kahler metric and…

微分几何 · 数学 2016-01-20 Luis Alvarez-Consul , Mario Garcia-Fernandez , Oscar Garcia-Prada

Let L --> X be a complex line bundle over a compact connected Riemann surface. We consider the abelian vortex equations on L when the metric on the surface has finitely many point degeneracies or conical singularities and the line bundle…

微分几何 · 数学 2021-06-28 J. M. Baptista , Indranil Biswas

In this paper, we provide a systematic and constructive description of Vaisman structures on certain principal elliptic bundles over complex flag manifolds. From this description we explicitly classify homogeneous l.c.K. structures on…

微分几何 · 数学 2022-03-28 Eder M. Correa

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…

数学物理 · 物理学 2020-05-13 Dennis Eriksson , Nuno M. Romão

We relate Berezin-Toeplitz quantization of higher rank vector bundles to quantum-classical hybrid systems and quantization in stages of symplectic fibrations. We apply this picture to the analysis and geometry of vector bundles, including…

微分几何 · 数学 2023-07-27 Louis Ioos , Leonid Polterovich

In this paper, the moduli space of singular unitary Hermitian--Einstein monopoles on the product of a circle and a Riemann surface is shown to correspond to a moduli space of stable pairs on the Riemann surface. These pairs consist of a…

微分几何 · 数学 2009-10-19 Benoit Charbonneau , Jacques Hurtubise

The main result of this paper gives a new construction of extremal K\"ahler metrics on the total space of certain holomorphic submersions, giving a vast generalisation and unification of results of Hong, Fine and others. The principal new…

微分几何 · 数学 2020-02-11 Ruadhaí Dervan , Lars Martin Sektnan

Master character of the multidimensional homogeneous Euler equation is discussed. It is shown that under restrictions to the lower dimensions certain subclasses of its solutions provide us with the solutions of various hydrodynamic type…

可精确求解与可积系统 · 物理学 2021-05-26 B. G. Konopelchenko , G. Ortenzi

The dynamics of a filled massive vortex is studied numerically and analytically using a two-dimensional model of a two-component Bose--Einstein condensate trapped in a harmonic trap. This condensate exhibits phase separation. In the…

量子气体 · 物理学 2022-06-29 Victor P. Ruban

We construct explicit examples of quaternion-K\"ahler and hypercomplex structures on bundles over hyperK\"ahler manifolds. We study the infinitesimal symmetries of these examples and the associated Galicki-Lawson quaternion-K\"ahler moment…

微分几何 · 数学 2024-10-30 Udhav Fowdar

We present the simplest non-abelian version of Seiberg-Witten theory: Quaternionic monopoles. These monopoles are associated with Spin^h(4)-structures on 4-manifolds and form finite-dimensional moduli spaces. On a Kahler surface the…

alg-geom · 数学 2009-10-28 Ch. Okonek , A. Teleman

The venerable 2D point-vortex model plays an important role as a simplified version of many disparate physical systems, including superfluids, Bose-Einstein condensates, certain plasma configurations, and inviscid turbulence. This system is…

混沌动力学 · 物理学 2013-05-29 Spencer A. Smith , Bruce M. Boghosian

We show in this article that if a holomorphic vector bundle has a nonnegative Hermitian metric in the sense of Bott and Chern, which always exists on globally generated holomorphic vector bundles, then some special linear combinations of…

微分几何 · 数学 2020-03-05 Ping Li

In this paper, we obtain a Le Potier-type isomorphism theorem twisted with multiplier submodule sheaves, which relates a holomorphic vector bundle endowed with a strongly Nakano semipositive singular Hermitian metric to the tautological…

复变函数 · 数学 2024-05-14 Yaxiong Liu , Zhuo Liu , Hui Yang , Xiangyu Zhou

We study moduli spaces of vector bundles on a two-dimensional neighbourhood $Z_k$ of an irreducible curve $\ell = CP^1$ with $\ell^2 = -k$ and give an explicit construction of these moduli as stratified spaces. We give sharp bounds for the…

代数几何 · 数学 2009-09-04 Edoardo Ballico , Elizabeth Gasparim , Thomas Köppe

In the holomorphic or algebraic setting we consider a vector bundle E on a smooth subvariety X in a smooth variety Y over a field of characteristic zero. Assuming E extends to the l-th neighborhood of X in Y, we study cohomological…

代数几何 · 数学 2022-10-04 Vladimir Baranovsky , Hongseok Chang

We consider a perturbed Hermitian-Einstein equation, which we call the Donaldson-Thomas equation, on compact K\"ahler threefolds. In arXiv:0805.2195, we analysed some analytic properties of solutions to the equation, in particular, we…

微分几何 · 数学 2022-10-11 Yuuji Tanaka

Using a quasi-linear version of Hodge theory, holomorphic vector bundles in a neighbourhood of a given polystable bundle on a compact Kaehler manifold are shown to be (poly)stable if and only if their corresponding classes are (poly)stable…

微分几何 · 数学 2020-02-11 Nicholas Buchdahl , Georg Schumacher