Cylindrically Symmetric Inhomogeneous Universes with a Cloud of Strings

TL;DR

This paper explores exact solutions to Einstein's field equations for cylindrically symmetric inhomogeneous universes filled with a string fluid, analyzing their physical and geometric properties.

Contribution

It introduces three types of exact solutions for inhomogeneous string cosmological models with cylindrical symmetry, expanding understanding of such universes.

Findings

Derived three exact solutions of Einstein's equations

Analyzed physical properties of the models

Discussed geometric aspects of the solutions

Abstract

Cylindrically symmetric inhomogeneous string cosmological models are investigated in presence of string fluid as a source of matter. To get the three types of exact solutions of Einstein's field equations we assume $A = f(x)k(t)$, $B = g(x)\ell(t)$ and $C = h(x)\ell(t)$. Some physical and geometric aspects of the models are discussed.