Existence of families of spacetimes with a Newtonian limit

Todd Oliynyk, Bernd Schmidt

Research output: Contribution to journalArticleResearchpeer-review

3 Citations (Scopus)


J??rgen Ehlers developed frame theory to better understand the relationship between general relativity and Newtonian gravity. Frame theory contains a parameter I>, which can be thought of as 1/c 2, where c is the speed of light. By construction, frame theory is equivalent to general relativity for I> > 0, and reduces to Newtonian gravity for I> = 0. Moreover, by setting \epsilon=\sqrt \lambda , frame theory provides a framework to study the Newtonian limit \epsilon \searrow 0 \, \rm (i.e. \, c\rightarrow \infty) . A number of ideas relating to frame theory that were introduced by J??rgen have subsequently found important applications to the rigorous study of both the Newtonian limit and post-Newtonian expansions. In this article, we review frame theory and discuss, in a non-technical fashion, some of the rigorous results on the Newtonian limit and post-Newtonian expansions that have followed from J??rgena??s work.
Original languageEnglish
Pages (from-to)2093 - 2111
Number of pages19
JournalGeneral Relativity and Gravitation
Issue number9
Publication statusPublished - 2009

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