Talk:Static spacetime

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[edit] Suggestion for Future Work

Hi, MP,

Whoever eventually creates the article on hypersurface orthogonal should be sure to point to the proposed article on congruence of curves (oops! congruence is of course already taken by an article on a distinct concept in algebra), where someone should discuss the expansion and vorticity tensors, and the Frobenius theorem relating hypersurface orthogonal to vanishing vorticity. Also, citations should be sure to include the book by Eric Poisson, A Relativist's Toolkit, the exact solutions book, and Hawking & Ellis, Large Scale Structure of Spacetime, which all offer useful introductions to congruences, expansion, and vorticity. ---CH

Hi, CH.

Sounds like a good idea to mention the congruence of curves and all the other juicy concepts you mentioned. I may make a start on this soon - time permitting. ---MP