On the relation between Dencker's polarization set and the gauge-fixing in electrodynamics
Mathematical Physics
2023-05-02 v1 math.MP
Abstract
The purpose of this short review, based in part on ideas developed in an article by the author and Fagundes [3], is to emphasize that the gauge-fixing condition, necessary to eliminate the spurious degrees of freedom of the electromagnetic field, is elegantly handled by Dencker's work on the propagation of polarization sets for systems of real principal type.
Cite
@article{arxiv.2305.00099,
title = {On the relation between Dencker's polarization set and the gauge-fixing in electrodynamics},
author = {Daniel H. T. Franco},
journal= {arXiv preprint arXiv:2305.00099},
year = {2023}
}
Comments
Dedicated to Prof. Jos\'e Abdalla Helay\"el-Neto on the occasion of his 70th birthday