Further exact cosmological solutions to higher-order gravity theories

被引：116

作者：

Clifton, T ^{[1
]}

Barrow, JD ^{[1
]}

机构：

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

来源：

CLASSICAL AND QUANTUM GRAVITY | 2006年 / 23卷 / 09期

关键词：

D O I：

10.1088/0264-9381/23/9/011

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate the effect of deviations from general relativity on approach to the initial singularity by finding exact cosmological solutions to a wide class of fourth-order gravity theories. We present new anisotropic vacuum solutions of modified Kasner type and demonstrate the extent to which they are valid in the presence of non-comoving perfect-fluid matter fields. The infinite series of Mixmaster oscillations seen in general relativity will not occur in these solutions, except in unphysical cases.

引用

页码：2951 / 2962

页数：12

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