Hi! I am novice in the Quantum Gravity field, so it was logical for me to start with the ADM formalism, but I am very confused about the Shift vector, specially in the Peldan paper http://arxiv.org/abs/gr-qc/9305011.(adsbygoogle = window.adsbygoogle || []).push({});

In the first equation of (2.29): why the contraction of N^a with VaI does not vanish as it was the case for the third equation of (2.29), the N^a and N^I aren't the same vector but viewed by two different coordinate systems?

I am already apologizing for my bad english :)

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# About the ADM Formalism?

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