Special conformal transformations in electrodynamics: mathematical foundations

We review the theory of special conformal transformations, deriving the transformation formulas for some important tensors and tensor densities, to the point where we are able to understand the conformal invariance of Maxwell’s equations. The invariant relativistic action reveals that the rest mass...

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Main Author: Călin Galeriu
Format: Article
Language:Portuguese
Published: Sociedade Brasileira de Física 2025-02-01
Series:Revista Brasileira de Ensino de Física
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172025000100406&lng=en&tlng=en
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author Călin Galeriu
author_facet Călin Galeriu
author_sort Călin Galeriu
collection DOAJ
description We review the theory of special conformal transformations, deriving the transformation formulas for some important tensors and tensor densities, to the point where we are able to understand the conformal invariance of Maxwell’s equations. The invariant relativistic action reveals that the rest mass of a particle is a scalar density, while its electric charge is a scalar.
format Article
id doaj-art-c53130d7bbab43048b3268e06bbc3eb6
institution DOAJ
issn 1806-9126
language Portuguese
publishDate 2025-02-01
publisher Sociedade Brasileira de Física
record_format Article
series Revista Brasileira de Ensino de Física
spelling doaj-art-c53130d7bbab43048b3268e06bbc3eb62025-08-20T03:11:10ZporSociedade Brasileira de FísicaRevista Brasileira de Ensino de Física1806-91262025-02-014710.1590/1806-9126-rbef-2024-0396Special conformal transformations in electrodynamics: mathematical foundationsCălin Galeriuhttps://orcid.org/0000-0001-7986-5071We review the theory of special conformal transformations, deriving the transformation formulas for some important tensors and tensor densities, to the point where we are able to understand the conformal invariance of Maxwell’s equations. The invariant relativistic action reveals that the rest mass of a particle is a scalar density, while its electric charge is a scalar.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172025000100406&lng=en&tlng=enWeyl spacespecial conformal transformationselectrodynamics
spellingShingle Călin Galeriu
Special conformal transformations in electrodynamics: mathematical foundations
Revista Brasileira de Ensino de Física
Weyl space
special conformal transformations
electrodynamics
title Special conformal transformations in electrodynamics: mathematical foundations
title_full Special conformal transformations in electrodynamics: mathematical foundations
title_fullStr Special conformal transformations in electrodynamics: mathematical foundations
title_full_unstemmed Special conformal transformations in electrodynamics: mathematical foundations
title_short Special conformal transformations in electrodynamics: mathematical foundations
title_sort special conformal transformations in electrodynamics mathematical foundations
topic Weyl space
special conformal transformations
electrodynamics
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172025000100406&lng=en&tlng=en
work_keys_str_mv AT calingaleriu specialconformaltransformationsinelectrodynamicsmathematicalfoundations