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We establish the existence of rank two Ulrich vector bundles on surfaces that are either of maximal Albanese dimension or with irregularity 1, under many embeddings. In particular we get the first known examples of Ulrich vector bundles on…

Algebraic Geometry · Mathematics 2020-07-24 Angelo Felice Lopez

We report the first experimental observation of vector surface solitons, which form at the edge and in the corner of two-dimensional laser-written waveguide arrays. These elliptically polarized vector states are composed of two orthogonally…

We introduce a new method to study mixed characteristic deformation of line bundles. In particular, for sufficiently large smooth projective families $f : \mathscr{X} \to \mathscr{S}$ defined over the ring of $N$-integers…

Algebraic Geometry · Mathematics 2026-02-11 David Urbanik , Ziquan Yang

We describe deformations of vector bundles on surfaces that are a product of two smooth projective curves. We explicitly describe the Kuranishi map around unstable vector bundles and compare the homologies of the Kuranishi spaces of stable…

Algebraic Geometry · Mathematics 2023-11-14 Edoardo Ballico , Elizabeth Gasparim , Francisco Rubilar , Bruno Suzuki

Hecke modifications of vector bundles have played a significant role in several areas of mathematics. They appear in subjects ranging from number theory to complex geometry. This article intends to be a friendly introduction to the subject.…

Algebraic Geometry · Mathematics 2025-01-08 Roberto Alvarenga , Inder Kaur , Leonardo Moço

A procedure for computing the dimensions of the moduli spaces of reducible, holomorphic vector bundles on elliptically fibered Calabi-Yau threefolds X is presented. This procedure is applied to poly-stable rank n+m bundles of the form V +…

High Energy Physics - Theory · Physics 2009-11-10 Yang-Hui He , Burt A. Ovrut , Rene Reinbacher

We present a construction of vertex algebra bundles and spaces of conformal blocks over families of logarithmic smooth curves. This work generalizes some earlier results by Frenkel and Ben-Zvi on vertex algebra bundles over complex smooth…

Quantum Algebra · Mathematics 2026-03-13 Xi-Chuan Tan

The logarithmic connections studied in the paper are direct images of regular connections on line bundles over genus-2 double covers of the elliptic curve. We give an explicit parametrization of all such connections, determine their…

Algebraic Geometry · Mathematics 2008-04-24 Francois-Xavier Machu

We propose an approach to study logarithmic sheaves T(-log A) associated with a hyperplane arrangements A on the projective space, based on projective duality, direct image functors and vector bundles methods. We focus on freeness of line…

Algebraic Geometry · Mathematics 2017-05-17 Daniele Faenzi , Jean Vallès

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

In this article, we investigate the stability of syzygy bundles corresponding to ample and globally generated vector bundles on smooth irreducible projective surfaces.

Algebraic Geometry · Mathematics 2024-05-28 Snehajit Misra , Nabanita Ray

We investigate the expected dimensionality of linear systems with general fat points on certain surfaces using an approach by specialization to elliptic surfaces. For the projectivization of the Atiyah bundle over an elliptic curve with a…

Algebraic Geometry · Mathematics 2024-01-23 Adrian Zahariuc

We prove an existence result for stable vector bundles with arbitrary rank on an algebraic surface, and determine the birational structure of certain moduli space of stable bundles on a rational ruled surface.

Algebraic Geometry · Mathematics 2016-09-06 Wei-ping Li , Zhenbo Qin

This work provides a curve-based approach to Ulrich bundles on surfaces, establishing a correspondence that characterizes their existence, with a focus on applications to surfaces in $\mathbb{P}^3$.

Algebraic Geometry · Mathematics 2025-10-16 Sofia Bordoni

In this article we study asymptotic slopes of strongly semistable vector bundles on a smooth projective surface. A connection between asymptotic slopes and strong restriction theorem of a strongly semistable vector bundle is shown. We also…

Algebraic Geometry · Mathematics 2022-01-10 Mitra Koley , A. J. Parameswaran

We give cohomological criteria for logarithmic good reduction of elliptic surfaces up to modification. Along the way, we prove several more general results about such surfaces in positive characteristic, as well as about log smooth…

Algebraic Geometry · Mathematics 2022-12-05 Otto Overkamp , Arne Smeets

The quantization of vector bundles is defined. Examples are constructed for the well controlled case of equivariant vector bundles over compact coadjoint orbits. (Coadjoint orbits are symplectic spaces with a transitive, semisimple symmetry…

q-alg · Mathematics 2009-10-30 Eli Hawkins

We investigate the relative logarithmic connections on a holomorphic vector bundle over a complex analytic family. We give a sufficient condition for the existence of a relative logarithmic connection on a holomorphic vector bundle singular…

Algebraic Geometry · Mathematics 2021-08-16 Snehajit Misra , Anoop Singh

This paper deals with two problems about vector bundles on bielliptic surfaces. The first is to give a classification of Ulrich bundles on such surfaces $S$, which depends on the topological type of $S$. In doing so, we study the weak…

Algebraic Geometry · Mathematics 2026-01-23 Edoardo Mason

A VB-algebroid is a vector bundle object in the category of Lie algebroids. We attach to every VB-algebroid a differential graded Lie algebra and we show that it controls deformations of the VB-algebroid structure. Several examples and…

Differential Geometry · Mathematics 2019-12-25 Pier Paolo La Pastina , Luca Vitagliano