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Math Help - relativity-variation

  1. #1
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    relativity-variation

    Hi there! Here is a piece from a book about general relativity http://www.photodump.com/direct/Bbki...ormulation.jpg and it is imposible for me to get equation (1) or to get (3) from (2). Does anyone have any idea what to do? I get (1) only assuming that we care only for a spacelike variation of V, so I project the lie derivative of V with respect to K , to the spacelike hypersyrface via the projective tensor δab+VaVb where the a index is contravariant and the b index covariant. I need some help. Thanks.
    Last edited by bbking22; April 23rd 2006 at 12:48 AM.
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  2. #2
    Grand Panjandrum
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    Don't double post. If you don't know where is appropriate guess. If your guess
    is inappropriate we will move it.

    Your other post has been deleted.

    RonL
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  3. #3
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    Ok,Ok!!
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  4. #4
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    Here is an attemp to derive the relations http://www.photodump.com/direct/Bbki...ropicfluid.jpg . Dont pay much attention to the words just follow the calculations. I need opinions and comments .
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  5. #5
    Super Member Rebesques's Avatar
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    Calculations seem ok... But some relations come out of the blue, and there seems to be no getting anywhere without them.


    ps. Who did the calculations? Does he like feta cheese?
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  6. #6
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    Indeed I like feta cheese a lot! Does this affect the calculations ? I will soon upload a more detailed version of my attemp!
    ps. Do you like feta cheese to?
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  7. #7
    Grand Panjandrum
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    Quote Originally Posted by bbking22
    Indeed I like feta cheese a lot! Does this affect the calculations ? I will soon upload a more detailed version of my attemp!
    ps. Do you like feta cheese to?
    Fetta cheese (and haloumi for that matter) are in the genes of some
    here

    RonL
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  8. #8
    Forum Admin topsquark's Avatar
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    Quote Originally Posted by CaptainBlack
    Fetta cheese (and haloumi for that matter) are in the genes of some
    here

    RonL
    Feta cheese. Yucky!

    Colby-Jack. YUM!

    -Dan
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  9. #9
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    Feta?Haloumi? It’s all Greek to me!
    Here is http://www.photodump.com/direct/Bbking22/3.jpg an explanation for some out of the blue relations.
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  10. #10
    Super Member Rebesques's Avatar
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    Fetta cheese (and haloumi for that matter) are in the genes of some
    here
    Well, as a child I had one too many sandwitches with feta, so I guess it is in my ...longing genes.


    an explanation for some out of the blue relations.
    ' O\lambda \alpha \ <br />
\epsilon\nu\tau \alpha\xi\epsilon\iota <br />
 \ \mu\alpha\nu.
    Last edited by Rebesques; May 2nd 2006 at 10:30 AM.
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