Projective symmetry in FRW spacetimes

G S Hall

Research output: Contribution to journalArticle

22 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)4637-4644
Number of pages8
JournalClassical and Quantum Gravity
Publication statusPublished - 2000




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