From pp-Waves to Galilean Spacetimes
We exhibit all spatially isotropic homogeneous Galilean spacetimes of dimension (𝑛 + 1) ≥ 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.
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| Published in: | Symmetry, Integrability and Geometry: Methods and Applications |
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| Date: | 2023 |
| Main Authors: | , , |
| Format: | Article |
| Language: | English |
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Інститут математики НАН України
2023
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/211908 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | From pp-Waves to Galilean Spacetimes. José Figueroa-O'Farrill, Ross Grassie and Stefan Prohazka. SIGMA 19 (2023), 035, 16 pages |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Summary: | We exhibit all spatially isotropic homogeneous Galilean spacetimes of dimension (𝑛 + 1) ≥ 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.
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| ISSN: | 1815-0659 |