Výsledky vyhledávání - "Marshall, Elliot"

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Past instability of FLRW solutions of the Einstein-Euler-scalar field equations for linear equations of state $p=K\rho$ with $0 \leq K<1/3$

Autor: Beyer, Florian, Marshall, Elliot, Oliynyk, Todd A.

Publikováno v: Phys. Rev. D 110 (2024), 044060

Using numerical methods, we examine, under a Gowdy symmetry assumption, the dynamics of nonlinearly perturbed FLRW fluid solutions of the Einstein-Euler-scalar field equations in the contracting direction for linear equations of state $p = K\rho$ and

Externí odkaz: http://arxiv.org/abs/2405.09095

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Future stability of perfect fluids with extreme tilt and linear equation of state $p=c_s^2\rho$ for the Einstein-Euler system with positive cosmological constant: The range $\frac{1}{3}

Autor: Fournodavlos, Grigorios, Marshall, Elliot, Oliynyk, Todd A.

We study the future stability of cosmological fluids, in spacetimes with an accelerated expansion, which exhibit extreme tilt behavior, ie. their fluid velocity becoming asymptotically null at timelike infinity. It has been predicted in the article \

Externí odkaz: http://arxiv.org/abs/2404.06789

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Future instability of FLRW fluid solutions for linear equations of state $p=K\rho$ with $1/3

Autor: Beyer, Florian, Marshall, Elliot, Oliynyk, Todd A.

Publikováno v: Phys. Rev. D 107 (2023), 104030

Using numerical methods, we examine the dynamics of nonlinear perturbations in the expanding time direction, under a Gowdy symmetry assumption, of FLRW fluid solutions to the Einstein-Euler equations with a positive cosmological constant $\Lambda>0$

Externí odkaz: http://arxiv.org/abs/2302.03159

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