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Journal ArticleDOI

The Yang-Mills equations over Riemann surfaces

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TLDR
In this article, the Yang-Mills functional over a Riemann surface is studied from the point of view of Morse theory, and the main result is that this is a perfect 9 functional provided due account is taken of its gauge symmetry.
Abstract
The Yang-Mills functional over a Riemann surface is studied from the point of view of Morse theory. The main result is that this is a ‘perfect9 functional provided due account is taken of its gauge symmetry. This enables topological conclusions to be drawn about the critical sets and leads eventually to information about the moduli space of algebraic bundles over the Riemann surface. This in turn depends on the interplay between the holomorphic and unitary structures, which is analysed in detail.

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Citations
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Journal ArticleDOI

Explicit quantization of the Chern-Simons action

TL;DR: In this article, the authors quantized the Chern-Simons action explicitly and found that the geometric quantization of the action strongly depends on the topology of the Riemann surface.
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Convergence properties of the Yang-Mills flow on Kaehler surfaces

TL;DR: In this paper, the Yang-Mills flow on a compact Kahler surface with Kahler form was shown to converge to the double dual of the graded sheaf associated to the Harder-Narasimhan-Seshadri filtration of the holomorphic bundle.
Book ChapterDOI

Wess-Zumino-Witten Conformal Field Theory

TL;DR: In this paper, the Wess-Zumino-Witten (WZW) models of two-dimensional quantum field theory are discussed. But the focus of the course is on the conformal invariant versions of the sigma models with fields taking values in a compact Lie group G.
Posted Content

Langevin dynamic for the 2D Yang-Mills measure

TL;DR: In this article, the authors define a natural state space and Markov process associated to the stochastic Yang-Mills heat flow in two dimensions and construct a framework for applying the theory of regularity structures in the context of vector-valued noise.
References
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Book

Principles of Algebraic Geometry

TL;DR: In this paper, a comprehensive, self-contained treatment of complex manifold theory is presented, focusing on results applicable to projective varieties, and including discussion of the theory of Riemann surfaces and algebraic curves, algebraic surfaces and the quadric line complex.
Book

Inequalities: Theory of Majorization and Its Applications

TL;DR: In this paper, Doubly Stochastic Matrices and Schur-Convex Functions are used to represent matrix functions in the context of matrix factorizations, compounds, direct products and M-matrices.
Book

Geometric Invariant Theory

David Mumford
TL;DR: Geometric invariant theory for moduli spaces has been studied extensively in the mathematical community as mentioned in this paper, with a large number of applications to the moduli space construction problem, see, for instance, the work of Mumford and Fogarty.
Journal ArticleDOI

Self-duality in four-dimensional Riemannian geometry

TL;DR: In this article, the authors present a self-contained account of the ideas of R. Penrose connecting four-dimensional Riemannian geometry with three-dimensional complex analysis, and apply this to the self-dual Yang-Mills equations in Euclidean 4-space and compute the number of moduli for any compact gauge group.
Journal ArticleDOI

Stable and unitary vector bundles on a compact Riemann surface

TL;DR: In this article, it was shown that on the space of isomorphic classes of unitary vector bundles on X of a given rank, there is a natural structure of a normal projective variety (Theorem 8.1).