Furkejuvvon:
| Váldodahkki: | |
|---|---|
| Materiálatiipa: | Preprint |
| Almmustuhtton: |
2025
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| Fáttát: | |
| Liŋkkat: | https://arxiv.org/abs/2502.08095 |
| Fáddágilkorat: |
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Sisdoallologahallan:
- We numerically study, under a Gowdy symmetry assumption, nonlinear perturbations of the decelerated FLRW fluid solutions to the Einstein-Euler system toward the future for linear equations of state $p=Kρ$ with $0\leq K\leq 1$. This article builds on the work of Fajman et al. (2024 arXiv:2405.03431) in which perturbations of the homogeneous fluid solution on a fixed, decelerating FLRW background were studied. Our numerical results show that for all values of $K$, perturbations of the FLRW solution develop shocks in finite time. This behaviour contrasts known results for spacetimes with accelerated expansion in which shock formation is suppressed.