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We construct the categories of standard vector bundles over schemes and define direct sum and tensor product. These categories are equivalent to the usual categories of vector bundles with additional properties. The tensor product is…

Category Theory · Mathematics 2014-04-08 Youngsoo Kim

Smooth complex surfaces polarized with an ample and globally generated line bundle of degree three and four, such that the adjoint bundle is not globally generated, are considered. Scrolls of a vector bundle over a smooth curve are shown to…

Algebraic Geometry · Mathematics 2007-05-23 Gian Mario Besana , Sandra Di Rocco

In this paper, we explore the theme of orbifold stratified spaces and establish a general criterion for them to be smooth orbifolds. This criterion utilizes the notion of linear stratification on the gluing bundles for the orbifold…

Geometric Topology · Mathematics 2015-02-19 Bohui Chen , An-Min Li , Bai-Ling Wang

Using the notion of a valuation into the semifield of piecewise linear functions, we give a classification of torus equivariant flat families of finite type over a toric variety base, by certain piecewise linear maps between fans. As a…

Algebraic Geometry · Mathematics 2022-10-12 Kiumars Kaveh , Christopher Manon

We study quotients of multi-graded bundles, including double vector bundles. Among other things, we show that any such quotient fits into a tower of affine bundles. Applications of the theory include a construction of normal bundles for…

Differential Geometry · Mathematics 2024-11-28 Eckhard Meinrenken

Implementing an idea due to John Baez and James Dolan we define new invariants of Whitney stratified manifolds by considering the homotopy theory of smooth transversal maps. To each Whitney stratified manifold we assign transversal homotopy…

Algebraic Topology · Mathematics 2009-10-20 Jonathan Woolf

We define double principal bundles (DPBs), for which the frame bundle of a double vector bundle, double Lie groups and double homogeneous spaces are basic examples. It is shown that a double vector bundle can be realized as the associated…

Differential Geometry · Mathematics 2021-09-07 Honglei Lang , Yanpeng Li , Zhangju Liu

When the action of a reductive group on a projective variety has a suitable linearisation, Mumford's geometric invariant theory (GIT) can be used to construct and study an associated quotient variety. In this article we describe how…

Algebraic Geometry · Mathematics 2017-03-16 Gergely Bérczi , Brent Doran , Frances Kirwan

Our objective is to develop a stratified Morse theory with tangential conditions. We define a continuous strata-wise smooth Morse function on an abstract stratified space by using control conditions and radiality assumptions on the gradient…

Geometric Topology · Mathematics 2010-11-25 Ursula Ludwig

In a previous work we proved the uniqueness and functoriality of primary unfoldings on simple Thom-Mather spaces, which is a functor to the category of smooth manifolds. In this article we extend these results for any stratified Thom-Mather…

Algebraic Topology · Mathematics 2010-04-29 T. Guardia , G. Padilla

This paper is devoted to the study of the family of morphisms of vector bundle, defined by the systems equivalence to linear differential equations. It is proved, that the specified families of the morphisms of vector bundle is not…

Classical Analysis and ODEs · Mathematics 2007-05-23 I. Kopshaev

We construct a category of flat vector bundles on an elliptic curve. It arises in the representation theory of quantum affine algebras and carries meromorphic braided structure with singularities on the diagonal of the square of the curve.

Quantum Algebra · Mathematics 2007-05-23 Yan Soibelman

In this paper, we define vector bundles within the framework of almost mathematics (referred to as almost vector bundles) and establish the $v$-descent theorem together with a structure theorem for these bundles over perfectoid spaces. The…

Algebraic Geometry · Mathematics 2026-01-28 Yuntong Cui , Guo Li , Shuhan Jiang , Jiahong Yu

We present equivalences between certain categories of vector bundles on projective varieties, namely cokernel bundles, Steiner bundles, syzygy bundles, and monads, and full subcategories of representations of certain quivers. As an…

Algebraic Geometry · Mathematics 2016-07-05 Marcos Jardim , Daniela M. Prata

Homotopy links have proven to be one of the most powerful tools of stratified homotopy theory. In previous work, we described combinatorial models for the generalized homotopy links of a stratified simplicial set. For many purposes, in…

Algebraic Topology · Mathematics 2025-01-28 Lukas Waas

We construct a smooth Deligne-Mumford compactification for the moduli space of curves with an m-tuple of spin structures using line bundles on quasi-stable curves as limiting objects, as opposed to line bundles on stacky curves. For all m,…

Algebraic Geometry · Mathematics 2023-07-18 Emre Can Sertöz

We study certain moduli spaces of stable vector bundles of rank two on cubic and quartic threefolds. In many cases under consideration, it turns out that the moduli space is complete and irreducible and a general member has vanishing…

Algebraic Geometry · Mathematics 2008-04-21 Indranil Biswas , Jishnu Biswas , G. V. Ravindra

Motivated by the problem of finding algebraic constructions of finite coverings in commutative algebra, the Steinitz realization problem in number theory, and the study of Hurwitz spaces in algebraic geometry, we investigate the vector…

Algebraic Geometry · Mathematics 2019-01-08 Anand Deopurkar , Anand Patel

We systematically study the splitting of vector bundles on a smooth, projective variety, whose restriction to the zero locus of a regular section of an ample vector bundle splits. First, we find ampleness and genericity conditions which…

Algebraic Geometry · Mathematics 2015-09-21 Mihai Halic

We consider the moduli space of rank two, odd degree, semi-stable Real vector bundles over a real curve, calculating the singular cohomology ring in odd and zero characteristic for most examples.

Symplectic Geometry · Mathematics 2016-07-25 Thomas John Baird