Cyclic Szekeres universes

被引：8

作者：

Barrow, John D. ^{[1
]}

Paliathanasis, Andronikos ^{[2
,3
]}

机构：

[1] Univ Cambridge, Ctr Math Sci, DAMTP, Wilberforce Rd, Cambridge CB3 0WA, England

[2] Univ Austral Chile, Inst Ciencias Fis & Matemat, Valdivia, Chile

[3] Durban Univ Technol, Inst Syst Sci, POB 1334, ZA-4000 Durban, South Africa

来源：

EUROPEAN PHYSICAL JOURNAL C | 2019年 / 79卷 / 05期

基金：

英国科学技术设施理事会;

关键词：

INHOMOGENEOUS COSMOLOGIES; EVOLUTION; SINGULARITIES;

D O I：

10.1140/epjc/s10052-019-6890-5

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We consider the Szekeres universe with an inhomogeneous dust fluid and a homogeneous and isotropic ghost matter source with equation of state p(g) = (gamma - 1)rho(g), where gamma is a constant. The field equations determine two families of spacetimes which describe homogeneous Kantowski-Sachs universes and inhomogeneous Friedmann universes. The ghost field permits static and cyclic solutions to exist. The stability of the Einstein static and cyclic solutions are studied with a critical point analysis.

引用

页数：8

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