Rotational perturbations of Friedmann–Robertson–Walker type brane-world cosmological models

Phase transitions in perturbed stiff-flu

Phase transitions in perturbed stiff-fluid Friedmann-Robertson-Walker cosmological models

✍ R. J. Gleiser; M. C. Diaz; R. D. Grosso 📂 Article 📅 1988 🏛 John Wiley and Sons 🌐 English ⚖ 260 KB 👁 1 views

We consider one-soliton perturbations of a flat Fricdmann-Robertson-Walker (FRW) cosmological model, with an ideal fluid with pressure equal to the cmrgy density (stiff fluid), in the case when the "pok trajactory" parameter is negative. introducing thenby singularitics along certain null h ypersurf