From pp-Waves to Galilean Spacetimes
نویسندگان
چکیده
We exhibit all spatially isotropic homogeneous Galilean spacetimes of dimension $(n+1) \geq 4$, including the novel torsional ones, as null reductions pp-wave spacetimes. also show that pp-waves are sourced by pure radiation fields and analyse their global properties.
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ژورنال
عنوان ژورنال: Symmetry Integrability and Geometry-methods and Applications
سال: 2023
ISSN: ['1815-0659']
DOI: https://doi.org/10.3842/sigma.2023.035