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Topic: computation of two-point objects
Replies: 2   Last Post: Jun 19, 2013 1:21 AM

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 Alexei Boulbitch Posts: 483 Registered: 2/28/08
Re: computation of two-point objects
Posted: Jun 17, 2013 6:19 AM
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hello,
I have been stuck for decades trying to calculate the world function for

ds^2=-(1+2\sigma)dv^2+2dvdr+r(r-2\sigma v)(d\theta^2+\sin(\theta)^2d\phi^2)
\phi=\n(1-2\sigma v/r)/2
R_{ab}=2\phi_a\phi_b

one gets elliptic functions if one try direct method, The trouble with
approximations is that it is hard to tell if they converge.....

bye,

/\/\,

Hi, Mark,

>From your post I could not figure out, what is your question. May be you should formulate it clearer, so that we see, if somebody might help. There is a second problem: the code above does not look like Mathematica syntax, and I really cannot understand, what it means. I propose that you rewrite it in a legal Mathematica way, and, if after that it still does not work, send it once more.

Have fun, Alexei
Alexei BOULBITCH, Dr., habil.
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e-mail: alexei.boulbitch@iee.lu<mailto:alexei.boulbitch@iee.lu>

Date Subject Author
6/15/13 Mark Roberts
6/17/13 Alexei Boulbitch
6/19/13 Roland Franzius

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