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This paper explores the cohomological consequences of the existence of moduli spaces for flat bundles with bounded rank and irregularity at infinity and gives unconditional proofs. Namely, we prove the existence of a universal bound for the…

Algebraic Geometry · Mathematics 2025-02-26 Haoyu Hu , Jean-Baptiste Teyssier

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

Different techniques from machine learning are applied to the problem of computing line bundle cohomologies of (hypersurfaces in) toric varieties. While a naive approach of training a neural network to reproduce the cohomologies fails in…

High Energy Physics - Theory · Physics 2019-01-09 Daniel Klaewer , Lorenz Schlechter

An algebraic framework for noncommutative bundles with (quantum) homogeneous fibres is proposed. The framework relies on the use of principal coalgebra extensions which play the role of principal bundles in noncommutative geometry which…

Quantum Algebra · Mathematics 2021-03-03 Tomasz Brzeziński , Wojciech Szymański

A triangulation of a surface is irreducible if there is no edge whose contraction produces another triangulation of the surface. In this work we propose an algorithm that constructs the set of irreducible triangulations of any surface with…

We present a proposal for an undeniable signature scheme based in supersingular hyperelliptic curves of genus 2.

Cryptography and Security · Computer Science 2019-08-21 Ramsès Fernàndez-València

A definition of non-abelian genus zero open Wilson surfaces is proposed. The ambiguity in surface-ordering is compensated by the gauge transformations.

High Energy Physics - Theory · Physics 2014-11-18 Iouri Chepelev

Hermitian bundle gerbes with connection are geometric objects for which a notion of surface holonomy can be defined for closed oriented surfaces. We systematically introduce bundle gerbes by closing the pre-stack of trivial bundle gerbes…

Differential Geometry · Mathematics 2009-01-19 Jürgen Fuchs , Thomas Nikolaus , Christoph Schweigert , Konrad Waldorf

We introduce a continuous domain framework for the recovery of points on a surface in high dimensional space, represented as the zero-level set of a bandlimited function. We show that the exponential maps of the points on the surface…

Computer Vision and Pattern Recognition · Computer Science 2018-03-21 Sunrita Poddar , Mathews Jacob

In this paper we give the classification of rank 3 vector bundles without "inner" cohomology on a quadric hypersurface \Q_n (n>3) by studying the associated monads.

Algebraic Geometry · Mathematics 2007-10-17 F. Malaspina

The aim of this paper is to establish an equivalence of certain categories of Higgs bundles on a non-isotrivial elliptic surface $\pi: X \rightarrow C$ with $\chi(X) > 0$ and certain categories of Parabolic Higgs bundles on $C$

Algebraic Geometry · Mathematics 2015-04-17 Rohith Varma

We prove that a continuous path with finite length in a real Banach space cannot have infinitely many zero components in its signature unless it is tree-like. In particular, this allows us to strengthen a limit theorem for signature…

Classical Analysis and ODEs · Mathematics 2018-12-24 Horatio Boedihardjo , Xi Geng

Let $A$ be an abelian scheme of dimension at least four over a $\mathbb{Z}$-finitely generated integral domain $R$ of characteristic zero, and let $L$ be an ample line bundle on $A$. We prove that the set of smooth hypersurfaces $D$ in $A$…

Algebraic Geometry · Mathematics 2022-10-05 Ariyan Javanpeykar , Siddharth Mathur

This short paper shows that a projective bundle over a smooth variety with a section can be uniquely recovered from the embedding of the section in its second infinitesimal neighborhood within the bundle.

Algebraic Geometry · Mathematics 2016-10-11 Travis Kopp

We demonstrate that stacking topologically trivial layers, under enforced symmetry restrictions, yields emergent topological phases with protected boundary states. Remarkably, the number of layers itself acts as a topological switch,…

Materials Science · Physics 2026-02-24 Kai Chen , Junyan Guan , Jiamin Guo , He Gao , Zhongming Gu , Jie Zhu

In this paper, we begin an investigation of infinite genus handlebodies, infinitely generated Schottky groups, and related uniformization questions by giving appropriate definitions for them. There are uncountably many topological types of…

Geometric Topology · Mathematics 2025-08-26 Ara Basmajian , Katsuhiko Matsuzaki

The construction for nonreduced projective moduli scheme of semistable admissible pairs is performed. We establish the relation of this moduli scheme with reduced moduli scheme built up in the previous article and prove that nonreduced…

Algebraic Geometry · Mathematics 2015-05-30 Nadezda V. Timofeeva

We show that a compact complex surface which fibers smoothly over a curve of genus >1 with fibers of genus >1 fibers holomorphically. We deduce an improvement of a result in [D Kotschick, Math. Research Letters, 5 (1998) 227-234], and a…

Differential Geometry · Mathematics 2007-05-23 D. Kotschick

We prove effective upper bounds on the global sections of nef line bundles of small generic degree over a fibered surface over a field of any characteristic. It can be viewed as a relative version of the classical Noether inequality for…

Algebraic Geometry · Mathematics 2013-04-24 Xinyi Yuan , Tong Zhang

We use bounds of character sums and some combinatorial arguments to show the abundance of very smooth numbers which also have very few non-zero binary digits.

Number Theory · Mathematics 2023-06-13 Maximilian Hauck , Igor E. Shparlinski