Search arXivSearch

arXiv · 2311.12506

Geometry on Surfaces and Higgs bundles

Abstract

There are three complete plane geometries of constant curvature: spherical, Euclidean and hyperbolic geometry. We explain how a closed oriented surface can carry a geometry which locally looks like one of these. Focussing on the hyperbolic case we describe how to obtain all hyperbolic structures on a given topological surface, and how to parametrise them. Finally we introduce Higgs bundles and explain how they relate to hyperbolic surfaces. This is an expository paper and we attempt to explain everything in in as simple terms as possible. For reasons of space the references are by no means complete, but we hope the interested reader will be able to use them as a starting point for further exploration.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

Peter B. Gothen. 2023-11-21. Geometry on Surfaces and Higgs bundles. https://arxiv.org/abs/2311.12506

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related papers

G3-Criteria and Applications

The G3-property of a subvariety was introduced by Hironaka-Matsumura, and plays an important role for deducing connectedness and extension results. Unfortunately, it's a rather elusive notion, which is not always easy to establish. Most of the existing work is concentrated on subvarieties of homogeneous varieties. The first goal of this article is to show that mobility assumptions on the subvariety, considered in works of Badescu, Chow, Debarre, Voisin, yield a certain partial positivity property, slightly stronger than G3, previously introduced by the author. Second, we apply the result to prove that, in numerous situations, the splitting of the normal bundle of a smooth two-codimensional subvariety implies that it is a complete intersection.

math.AG

Nodal degeneration of chiral algebras I: Global structure and gluing formula

We define a natural extension of a universal factorization algebra $\mathcal{A}$ to families of stable punctured curves, by integrating over all semistable modifications. We prove that the resulting sheaf of factorization homology satisfies a natural gluing formula, by tensoring over a certain derived associative algebra $\mathfrak{Z}_{\mathcal{A}}^0$, generalizing the Verlinde formula for gluing of conformal blocks.

math.AG