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We study some canonical differential operators on vector bundles over smooth, complete Riemannian manifolds. Under very general assumptions, we show that smooth, compactly supported sections are dense in the domains of these operators.…

Functional Analysis · Mathematics 2016-03-09 Lashi Bandara

In an unpublished preprint, A. King conjectured that there are tilting bundles over projective varieties which are obtained as invariant quotients of affine spaces for linear actions of reductive groups. The goal of this paper is to give…

Algebraic Geometry · Mathematics 2009-06-19 Mihai Halic

We show that the set of the equivalence classes of multifoliate structures is in one-to-one correspondence with the set of equivalence classes of finite complete projective systems of vector space epimorphisms. After that we give the…

Differential Geometry · Mathematics 2012-11-28 Vadim V. Shurygin

This is a continuation of the authors' previous work [math.AT/9910001] on classification of equivariant complex vector bundles over a circle. In this paper we classify equivariant real vector bundles over a circle with a compact Lie group…

Algebraic Topology · Mathematics 2023-10-31 Jin-Hwan Cho , Sung Sook Kim , Mikiya Masuda , Dong Youp Suh

Given a fiber bundle, we construct a differential graded Lie algebra model for the classifying space of the monoid of homotopy equivalences of the base covered by a fiberwise isomorphism of the total space.

Algebraic Topology · Mathematics 2017-03-13 Alexander Berglund

The category of affine schemes is a tangent category whose tangent bundle functor is induced by K\"ahler differentials, providing a direct link between algebraic geometry and tangent category theory. Moreover, this tangent bundle functor is…

Category Theory · Mathematics 2026-04-21 Marcello Lanfranchi , Jean-Simon Pacaud Lemay

I extend the framework of rigid analytic geometry to the setting of algebraic geometry relative to monoids, and study the associated notions of separated, proper, and overconvergent morphisms. The category of affine manifolds embeds as a…

Algebraic Geometry · Mathematics 2015-05-29 Andrew W. Macpherson

We study the category of modules admitting compatible actions of the Lie algebra $\mathcal{V}$ of vector fields on an affine space and the algebra $\mathcal{A}$ of polynomial functions. We show that modules in this category which are…

Representation Theory · Mathematics 2020-02-21 Yuly Billig , Colin Ingalls , Amir Nasr

We construct a motivic homotopy theory for rigid analytic varieties with the rigid analytic affine line $\mathbb{A} ^1_\mathrm{rig}$ as an interval object. This motivic homotopy theory is inspired from, but not equal to, Ayoub's motivic…

Algebraic Geometry · Mathematics 2017-08-04 Helene Sigloch

We prove that moduli spaces of semistable vector bundles of coprime rank and degree over a non-singular real projective curve are maximal real algebraic varieties if and only if the base curve itself is maximal. This provides a new family…

Algebraic Geometry · Mathematics 2026-03-04 Erwan Brugallé , Florent Schaffhauser

Let $C$ be a smooth, projective, geometrically irreducible curve defined over $\mathbb{R}$ such that $C(\mathbb{R}) = \emptyset$. Let $r>0$ and $d$ be integers which are coprime. Let $L$ be a line bundle on $C$ which corresponds to an…

Algebraic Geometry · Mathematics 2019-10-30 Souradeep Majumder , Ronnie Sebastian

Let X be a smooth projective variety defined over an algebraically closed field k. Nori constructed a category of vector bundles on X, called essentially finite vector bundles, which is reminiscent of the category of representations of the…

Algebraic Geometry · Mathematics 2009-12-21 Indranil Biswas , Joao Pedro P. dos Santos

Quantum affine bundles are quantum principal bundles with affine quantum structure groups. A general theory of quantum affine bundles is presented. In particular, a detailed analysis of differential calculi over these bundles is performed,…

Quantum Algebra · Mathematics 2009-10-31 Micho Durdevich

We completely classify all quotient bundles of a given vector bundle on the Fargues-Fontaine curve. As consequences, we have two additional classification results: a complete classification of all vector bundles that are generated by a…

Number Theory · Mathematics 2024-03-12 Serin Hong

In order to understand the structure of the cohomologies involved in the study of projectively equivariant quantizations, we introduce a notion of affine representation of a Lie algebra.We show how it is related to linear representations…

Differential Geometry · Mathematics 2007-05-23 Sarah Hansoul , Pierre B. A. Lecomte

In this note we identify two complex structures (one is given by algebraic geometry, the other by gauge theory) on the set of isomorphism classes of holomorphic bundles with section on a given compact complex manifold. In the case of line…

Algebraic Geometry · Mathematics 2007-05-23 Siegmund Kosarew , Paul Lupascu

We reprove the results of Jordan [18] and Siebert [31] and show that the Lie algebra of polynomial vector fields on an irreducible affine variety X is simple if and only if X is a smooth variety. Given proof is self-contained and does not…

Representation Theory · Mathematics 2017-11-27 Yuly Billig , Vyacheslav Futorny

The classification of affine line bundles on a compact complex space $X$ is a difficult problem. We study the affine analogue of the Picard functor and the representability problem for this functor. For a fixed Chern class $c$, we introduce…

Complex Variables · Mathematics 2018-04-11 Valentin Plechinger

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 article, we study the smoothness of the moduli space of finite quiver vector bundles over the smooth complex projective curves.

Algebraic Geometry · Mathematics 2025-03-18 Amit Kumar Singh