Generalized Dirac operators on Lorentzian manifolds and propagation of singularities
Differential Geometry
2011-10-10 v1 Mathematical Physics
Analysis of PDEs
math.MP
Abstract
We survey the correct definition of a generalized Dirac operator on a Space--Time and the classical result about propagation of singularities. This says that light travels along light--like geodesics. Finally we show this is also true for generalized Dirac operators.
Keywords
Cite
@article{arxiv.1110.1475,
title = {Generalized Dirac operators on Lorentzian manifolds and propagation of singularities},
author = {Paolo Antonini},
journal= {arXiv preprint arXiv:1110.1475},
year = {2011}
}