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In this paper we study the category of standard holomorphic vector bundles on a noncommutative two-torus. We construct a functor from the derived category of such bundles to the derived category of coherent sheaves on an elliptic curve and…

Quantum Algebra · Mathematics 2009-11-07 Alexander Polishchuk , Albert Schwarz

We define analogues of homogeneous coordinate algebras for noncommutative two-tori with real multiplication. We prove that the categories of standard holomorphic vector bundles on such noncommutative tori can be described in terms of graded…

Algebraic Geometry · Mathematics 2007-05-23 Alexander Polishchuk

In this article, we propose a way of seeing the noncommutative tori in the category of noncommutative motives. As an algebra, the noncommutative torus is lack the smoothness property required to define a noncomutative motive. Thus, instead…

Algebraic Geometry · Mathematics 2014-03-11 Yunyi Shen

We introduce the notion of a quasicoherent sheaf on a complex noncommutative two-torus $T$ as an ind-object in the category of holomorphic vector bundles on $T$. Extending the results of math.QA/0211262 and math.QA/0308136 we prove that the…

Quantum Algebra · Mathematics 2007-05-23 Alexander Polishchuk

We study the interplay between noncommutative tori and noncommutative elliptic curves through a category of equivariant differential modules on $\mathbb{C}^*$. We functorially relate this category to the category of holomorphic vector…

Quantum Algebra · Mathematics 2015-08-26 Snigdhayan Mahanta , Walter D. van Suijlekom

We define the notion of a holomorphic bundle on the noncommutative toric orbifold $T_{\theta}/G$ associated with an action of a finite cyclic group $G$ on an irrational rotation algebra. We prove that the category of such holomorphic…

Algebraic Geometry · Mathematics 2007-05-23 Alexander Polishchuk

We establish some properties of the derived category of torus-equivariant coherent sheaves on a split toric stack bundle. Our main result is a semi-orthogonal decomposition of such a category.

Algebraic Geometry · Mathematics 2025-01-24 Qian Chao , Jiun-Cheng Chen , Hsian-Hua Tseng

This paper presents the theory of holomorphic vector valued modular forms from a geometric perspective. More precisely, we define certain holomorphic vector bundles on the modular orbifold of generalized elliptic curves whose sections are…

Number Theory · Mathematics 2016-01-11 Luca Candelori , Cameron Franc

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…

Algebraic Geometry · Mathematics 2013-03-20 I. Biswas , V. Muñoz , J. Sánchez

We classify holomorphic as well as algebraic torus equivariant principal $G$-bundles over a nonsingular toric variety $X$, where $G$ is a complex linear algebraic group. It is shown that any such bundle over an affine, nonsingular toric…

Algebraic Geometry · Mathematics 2015-10-15 Indranil Biswas , Arijit Dey , Mainak Poddar

We exhaustively classify topological equivariant complex vector bundles over two-sphere under a compact Lie group (not necessarily effective) action. It is shown that inequivariant Chern classes and isotropy representations at (at most)…

Group Theory · Mathematics 2011-03-11 Min Kyu Kim

We give a combinatorial classification of torus equivariant vector bundles on a (normal) projective T-variety of complexity-one. This extends the classification of equivariant line bundles on complexity-one T-varieties by Petersen-S\"uss on…

Algebraic Geometry · Mathematics 2024-06-06 Jyoti Dasgupta , Chandranandan Gangopadhyay , Kiumars Kaveh , Christopher Manon

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…

Algebraic Geometry · Mathematics 2015-01-27 Yuriy A. Drozd , Denys E. Voloshyn

In this paper we define 2-vector bundles as suitable bundles of 2-vector spaces over a base space, and compare the resulting 2-K-theory with the algebraic K-theory spectrum K(V) of the 2-category of 2-vector spaces, as well as the algebraic…

Algebraic Topology · Mathematics 2007-05-23 Nils A. Baas , Bjørn Ian Dundas , John Rognes

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…

Mathematical Physics · Physics 2018-01-16 Giuseppe De Nittis , Kiyonori Gomi

We give a complete classification of equivariant vector bundles of rank two over smooth complete toric surfaces and construct moduli spaces of such bundles. This note is a direct continuation of an earlier note where we developed a general…

Algebraic Geometry · Mathematics 2009-08-06 Markus Perling

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…

Algebraic Geometry · Mathematics 2015-04-21 Lennart Meier

Conjecture 9B from the previous version of the paper stating that any holomorphic vector bundle on an elliptic curve can be realized by a scalar differential equation has now been proved by the authors. The proof is included in the new…

High Energy Physics - Theory · Physics 2008-02-03 Pavel Etingof , Boris Khesin

We exhaustively classify topological equivariant complex vector bundles over two-torus under a compact Lie group (not necessarily effective) action. It is shown that inequivariant Chern classes and isotropy representations at (at most) six…

Group Theory · Mathematics 2010-07-13 Min Kyu Kim

We prove that every topological/smooth $\T=(\C^{*})^{n}$-equivariant vector bundle over a topological toric manifold of dimension $2n$ is a topological/smooth Klyachko vector bundle in the sense of arXiv:2504.02205.

Differential Geometry · Mathematics 2025-04-18 Yong Cui , Amin Gholampour
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