Geodesic
From pp-Waves to Galilean Spacetimes
Symmetry, integrability and geometry: methods and applications, Tome 19 (2023) Cet article a éte moissonné depuis la source Math-Net.Ru

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We exhibit all spatially isotropic homogeneous Galilean spacetimes of dimension $(n+1) \geq 4$, including the novel torsional ones, as null reductions of homogeneous pp-wave spacetimes. We also show that the pp-waves are sourced by pure radiation fields and analyse their global properties.
Keywords: pp-waves, Galilean spacetimes, null reduction. 
@article{SIGMA_2023_19_a34,
     author = {Jos\'e Figueroa-O'Farrill and Ross Grassie and Stefan Prohazka},
     title = {From {pp-Waves} to {Galilean} {Spacetimes}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2023},
     volume = {19},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2023_19_a34/}
}
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José Figueroa-O'Farrill; Ross Grassie; Stefan Prohazka. From pp-Waves to Galilean Spacetimes. Symmetry, integrability and geometry: methods and applications, Tome 19 (2023). http://geodesic.mathdoc.fr/item/SIGMA_2023_19_a34/

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