Coulomb Gauges and Regularity for Stationary Weak Yang$-$Mills Connections in Supercritical Dimension

Fuente: arXiv
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Main Authors: Caniato, Riccardo, Rivière, Tristan
Format: Preprint
Published: 2024
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_version_ 1866909616631185408
author Caniato, Riccardo
Rivière, Tristan
author_facet Caniato, Riccardo
Rivière, Tristan
contents We prove that stationary Yang$-$Mills fields in dimensions 5 belonging to the variational class of weak connections are smooth away from a closed singular set $S$ of vanishing 1-dimensional Hausdorff measure. Our proof is based on an $\varepsilon$-regularity theorem, which generalizes to this class of weak connections the existing previous $\varepsilon$-regularity results by G. Tian for smooth connections, by Y. Meyer and the second author for Sobolev and approximable connections, and by T. Tao and G. Tian for admissible connections (which are weak limits of smooth Yang$-$Mills fields). On the path towards establishing $\varepsilon$-regularity, a pivotal step is the construction of controlled Coulomb gauges for general weak connections under small Morrey norm assumptions.
format Preprint
id arxiv_https___arxiv_org_abs_2411_19910
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Coulomb Gauges and Regularity for Stationary Weak Yang$-$Mills Connections in Supercritical Dimension
Caniato, Riccardo
Rivière, Tristan
Differential Geometry
Analysis of PDEs
58E15 (primary), 49Q15, 49Q20, 53C65, 81T13 (secondary)
We prove that stationary Yang$-$Mills fields in dimensions 5 belonging to the variational class of weak connections are smooth away from a closed singular set $S$ of vanishing 1-dimensional Hausdorff measure. Our proof is based on an $\varepsilon$-regularity theorem, which generalizes to this class of weak connections the existing previous $\varepsilon$-regularity results by G. Tian for smooth connections, by Y. Meyer and the second author for Sobolev and approximable connections, and by T. Tao and G. Tian for admissible connections (which are weak limits of smooth Yang$-$Mills fields). On the path towards establishing $\varepsilon$-regularity, a pivotal step is the construction of controlled Coulomb gauges for general weak connections under small Morrey norm assumptions.
title Coulomb Gauges and Regularity for Stationary Weak Yang$-$Mills Connections in Supercritical Dimension
topic Differential Geometry
Analysis of PDEs
58E15 (primary), 49Q15, 49Q20, 53C65, 81T13 (secondary)
url https://arxiv.org/abs/2411.19910