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Error in the 4-velocity
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Error in the 4-velocity
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robin
Joined:
26 Mar 2010, 04:39
Posts:
109
Error in the 4-velocity
I believe there are problems with the 4-velocity vector defined on page 435 and 436. I think Penrose made the error in the definition because the metric he is using is not the usual one.
See my response to
Exercise 18.18
for more details.
Please let me know if you agree/disagree.
18 Jun 2010, 10:48
deant
Joined:
12 Jul 2010, 07:44
Posts:
154
Re: Error in the 4-velocity
Robin, I think you are correct.
It should be:
and
on pages 435 and 436 respectively.
...btw it's your answer to Exercise [18.
19
] not 18.18, that contains those corrections.
10 Jan 2012, 16:50
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