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Sep 11, 2014 at 21:38 history edited Robert Israel CC BY-SA 3.0
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Sep 11, 2014 at 21:25 history edited Robert Israel CC BY-SA 3.0
added 421 characters in body
Sep 11, 2014 at 17:39 comment added Grigory Yaroslavtsev Thanks, but this still doesn't seem like a closed form. If I take $\frac{d^t g_{nj}(z) }{ d z^t}$ at $z = 0$ then it still looks like an expansion over all possible paths.
Sep 11, 2014 at 17:03 history answered Robert Israel CC BY-SA 3.0