Asymptotics of Solutions of a Perfect Fluid Coupled with a Cosmological Constant in Four-Dimensional Spacetime with Toroidal Symmetry

Abstract

Asymptotics of solutions of a perfect fluid when coupled with a cosmological constant in four-dimensional spacetime with toroidal symmetry are studied. In particular, it is found that the problem of self-similar solutions of the first kind for a fluid with the equation of state, $p=k\rho$, can be reduced to solving a master equation of the form, $$2F(q,k)\frac{q^{\prime \prime }(\xi )}{q^{\prime }(\xi )}-G(q,k)q^{\prime }(\xi )=\frac{4}{\xi }.$$ For $k=0$ and $k=-1/3$ the general solutions are obtained and their main local and global properties are studied in detail.

arXiv commentlatex file, including 11 figures, to appear in Gen. Relativ. Grav

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Cited by in corpus (1)

• Gravitational Collapse of Phantom Fluid in (2+1)-Dimensions