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We provide several results on the existence of metrics of non-negative sectional curvature on vector bundles over certain cohomogeneity one manifolds and homogeneous spaces up to suitable stabilization. Beside explicit constructions of the…

微分几何 · 数学 2022-05-09 Manuel Amann , David González-Álvaro , Marcus Zibrowius

This is a review article exploring similarities between moduli of quiver representations and moduli of vector bundles over a smooth projective curve. After describing the basic properties of these moduli problems and constructions of their…

代数几何 · 数学 2019-01-01 Victoria Hoskins

We desribe vector bundles over a class of noncommutative curves, namely, over noncommutative nodal curves of string type and of almost string type. We also prove that in other cases the classification of vector bundles over a noncommutative…

代数几何 · 数学 2015-01-27 Yuriy A. Drozd , Denys E. Voloshyn

I repeat my definition for quantization of a vector bundle. For the case of Toeplitz and geometric quantization of a compact Kaehler Manifold, I give a construction for quantizing any smooth vector bundle which depends functorially on a…

量子代数 · 数学 2009-10-31 Eli Hawkins

We study vector bundles on the moduli stack of elliptic curves over a local ring R. If R is a field or a discrete valuation ring of (residue) characteristic not 2 or 3, all these vector bundles are sums of line bundles. For R the 3-local…

代数几何 · 数学 2015-04-21 Lennart Meier

We survey some recent progress in the theory of vector bundles on algebraic varieties and related questions in algebraic K-theory.

代数几何 · 数学 2021-11-08 Aravind Asok , Jean Fasel

We consider \Gamma-equivariant principal G-bundles over proper \Gamma-CW-complexes with prescribed family of local representations. We construct and analyze their classifying spaces for locally compact, second countable topological groups…

代数拓扑 · 数学 2014-11-11 Bernardo Uribe , Wolfgang Lueck

We compute the equivariant complex K-theory ring of a cohomogeneity-one action of a compact Lie group at the level of generators and relations and derive a characterization of K-theoretic equivariant formality for these actions. Less…

代数拓扑 · 数学 2022-03-15 Jeffrey D. Carlson

We give a classifying theory for $LG$-bundles, where $LG$ is the loop group of a compact Lie group $G$, and present a calculation for the string class of the universal $LG$-bundle. We show that this class is in fact an equivariant…

微分几何 · 数学 2012-03-16 Raymond F. Vozzo

We give an explicit decription for univeral principal U(r)-bundles with periodic map by means of equivariant Stiefel manifolds. We then show that the associated equivariant vector bundle is equivalent to the canonical one given by G. Segal.…

代数拓扑 · 数学 2007-05-23 Abdelouahab Arouche

The paper presents a classification theorem for the class of flat connections with triangular (0,1)-components on a topologically trivial complex vector bundle over a compact Kahler manifold. As a consequence we obtain several results on…

微分几何 · 数学 2007-05-23 Alexander Brudnyi

Let X be a smooth complete complex toric variety such that the boundary is a simple normal crossing divisor, and let E be a holomorphic vector bundle on X. We prove that E admits an equivariant structure if and only if E admits a…

代数几何 · 数学 2013-03-20 I. Biswas , V. Muñoz , J. Sánchez

This paper focuses on the study of a new category of vector bundles. The objects of this category, called chiral vector bundles, are pairs given by a complex vector bundle along with one of its automorphisms. We provide a classification for…

数学物理 · 物理学 2018-01-16 Giuseppe De Nittis , Kiyonori Gomi

We describe the cohomology groups of a homogeneous vector bundle $E$ on any Hermitian symmetric variety $X=G/P$ of ADE type as the cohomology of a complex explicitly described. The main tool is the equivalence between the category of…

代数几何 · 数学 2007-05-23 Giorgio Ottaviani , Elena Rubei

We examine the topological characteristic cohomology classes of complexified vector bundles. In particular, all the classes coming from the real vector bundles underlying the complexification are determined.

K理论与同调 · 数学 2013-12-24 Alexander D. Rahm

We define and study a certain category of vector bundles on a p-adic curve to which we can associate in a functorial way finite dimensional p-adic representations of the geometric fundamental group. Among other things we investigate two…

数论 · 数学 2007-05-23 C. Deninger , A. Werner

We extend the scope of a former paper to vector bundle problems involving more than one vector bundle. As the main application, we obtain the solution of the well-known moduli problems of vector bundles associated with general quivers.

代数几何 · 数学 2007-05-23 Alexander Schmitt

This paper studies linear generalised complex structures over vector bundles, as a generalised geometry version of holomorphic vector bundles. In an adapted linear splitting, a linear generalised complex structure on a vector bundle $E\to…

微分几何 · 数学 2021-05-07 Malte Heuer , Madeleine Jotz Lean

A duality is discussed for Lie group bundles vs. certain tensor categories with non-simple identity, in the setting of Nistor-Troitsky gauge-equivariant K-theory. As an application, we study C*-algebra bundles with fibre a fixed-point…

K理论与同调 · 数学 2007-12-03 Ezio Vasselli

We introduce an abstract framework of Cartesian squares beyond the context of fiber products, and use it to extend the notion of pullback from classical to compact quantum principal bundles. Based only on our abstract notion of a Cartesian…

K理论与同调 · 数学 2026-01-01 Francesco D'Andrea , Tomasz Maszczyk