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Auteurs principaux: Feng, Yu, Wang, Shuo, Xu, Bin
Format: Preprint
Publié: 2025
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Accès en ligne:https://arxiv.org/abs/2501.10976
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author Feng, Yu
Wang, Shuo
Xu, Bin
author_facet Feng, Yu
Wang, Shuo
Xu, Bin
contents In 1987, Hitchin introduced the self-duality equations on rank-2 complex vector bundles over compact Riemann surfaces with genus greater than one as a reduction of the Yang-Mills equation and established the existence of solutions to these equations starting from a Higgs stable bundle. In this paper, we fill in some technical details in Hitchin's original proof by the following three steps. First, we reduce the existence of a solution of class $L_1^2$ to minimizing the energy functional within a Higgs stable orbit of the $L_2^2$ complex gauge group action. Second, using this transformation, we obtain a solution of class $L_1^2$ in this orbit. These two steps primarily follow Hitchin's original approach. Finally, using the Coulomb gauge, we construct a smooth solution by applying an $L_2^2$ unitary gauge transformation to the $L_1^2$ solution constructed previously. This last step provides additional technical details to Hitchin's original proof.
format Preprint
id arxiv_https___arxiv_org_abs_2501_10976
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A note On the existence of solutions to Hitchin's self-duality equations
Feng, Yu
Wang, Shuo
Xu, Bin
Differential Geometry
Symplectic Geometry
In 1987, Hitchin introduced the self-duality equations on rank-2 complex vector bundles over compact Riemann surfaces with genus greater than one as a reduction of the Yang-Mills equation and established the existence of solutions to these equations starting from a Higgs stable bundle. In this paper, we fill in some technical details in Hitchin's original proof by the following three steps. First, we reduce the existence of a solution of class $L_1^2$ to minimizing the energy functional within a Higgs stable orbit of the $L_2^2$ complex gauge group action. Second, using this transformation, we obtain a solution of class $L_1^2$ in this orbit. These two steps primarily follow Hitchin's original approach. Finally, using the Coulomb gauge, we construct a smooth solution by applying an $L_2^2$ unitary gauge transformation to the $L_1^2$ solution constructed previously. This last step provides additional technical details to Hitchin's original proof.
title A note On the existence of solutions to Hitchin's self-duality equations
topic Differential Geometry
Symplectic Geometry
url https://arxiv.org/abs/2501.10976