Projective symmetry in FRW spacetimes

被引：20

作者：

Hall, GS ^{[1
]}

机构：

[1] Univ Aberdeen, Kings Coll, Dept Math Sci, Aberdeen AB24 3UE, Scotland

来源：

CLASSICAL AND QUANTUM GRAVITY | 2000年 / 17卷 / 22期

关键词：

D O I：

10.1088/0264-9381/17/22/304

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

This paper presents a general discussion of projective symmetry in FRW spacetimes. It is shown that there is at most one proper projective vector field admitted in the sense that any other projective vector field is a linear combination of the original and a homothetic vector field. The situation is, essentially, solved completely for the FRW models with k = +/-1 and up to quadratures in the case k = 0.

引用

页码：4637 / 4644

页数：8

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