Exact general relativistic solutions for a cylindrically symmetric stiff fluid matter source

Tiberiu Harko, Francisco S. N. Lobo, Man Kwong Mak

In this work, we derive the general solutions for a cylindrically symmetric space-time filled with a cosmological perfect fluid obeying $p=\gamma \rho$ ($0\le \gamma \le 1$), where $\gamma =1$ repres…