Recent content by st0ck

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    Graduate Coordinate independence of Lie derivative

    Thank you for your reply, eok20. I am sorry it took me so long to get the photographs. Ah, now that you say it, I can remember having heard that. Do you know any source where I can find the proof? http://j.imagehost.org/view/0383/IMG_3862s http://h.imagehost.org/view/0843/IMG_3863s...
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    Graduate Laplacian of 2-Form in R^3: Reference & Calculation

    For your first question, if the codifferential is defined with a sign (-1)^n(p+1), it can be shown that in euclidean space in general laplace beltrami of a form is the same as the usual old laplacian of every function factor (times the wedged covectors). It is a lengthy calculation and took me...
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    Graduate Coordinate independence of Lie derivative

    Hello Forum, since my GR tutor can't help me with some issues arising I thought it is time to register here. I am very confused about the phrase "coordinate independence". Especially regarding the Lie Derivative and the Commutator of two vector fields. 1) The Lie Derivative is said...