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Partial Compactification of Monopoles and Metric Asymptotics

About this Title

Chris Kottke and Michael Singer

Publication: Memoirs of the American Mathematical Society
Publication Year: 2022; Volume 280, Number 1383
ISBNs: 978-1-4704-5541-5 (print); 978-1-4704-7283-2 (online)
DOI: https://doi.org/10.1090/memo/1383
Published electronically: October 7, 2022
Keywords: Non-abelian magnetic monopole, moduli space, compactification, manifold with corners, pseudodifferential operator, gauge theory

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Table of Contents

Chapters

  • Acknowledgments
  • 1. Introduction
  • 2. The Bogomolny equations on a scattering manifold
  • 3. Formal 1-parameter families
  • 4. Moduli of ideal monopoles
  • 5. Universal gluing space and parameterized gluing
  • 6. The metric
  • A. Sobolev spaces
  • B. Coulomb gauge
  • C. Linear analysis
  • D. Pseudodifferential operators

Abstract

We construct a partial compactification of the moduli space, $\mathcal {M}_k$, of $\mathrm {SU}(2)$ magnetic monopoles on $\mathbb {R}^3$, wherein monopoles of charge $k$ decompose into widely separated ‘monopole clusters’ of lower charge going off to infinity at comparable rates. The hyperKähler metric on $\mathcal {M}_k$ has a complete asymptotic expansion up to the boundary, the leading term of which generalizes the asymptotic metric discovered by Bielawski, Gibbons and Manton when each lower charge is 1.

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