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Oct13-07, 02:06 PM
P: 1,996
Quote Quote by Daverz View Post
I think you can do it if you start with the special cases

[tex] v_{a}t_{aa} = 0 [/tex]

[tex] 2 v_{a}t_{ab} + v_{b}t_{aa}= 0 [/tex]
I don't know--

You're first equation only implies that either v_a or t_aa is 0 for a given a. Using the first one with the second one doesn't really imply anything because both v_a and t_aa could be 0 so then there would be no restrictions on t_ab or v_b.