Manuscript VII-A@1 · VII-A.tex · section · 11da3fe6
Explicit Einstein-tensor coefficients
Explicit Einstein-tensor coefficients · lines 2185–2302
VII-A@1#eq:RicciConvention, VII-A@1#eq:Gamma1, VII-A@1#eq:Gamma2, VII-A@1#eq:R1, VII-A@1#eq:R2, VII-A@1#eq:r1, VII-A@1#eq:r2, VII-A@1#eq:G1explicit, VII-A@1#eq:G2explicit
This appendix fixes the curvature convention used in Section sec:einstein. Write
Define
Then
The linear Ricci coefficient is
and the quadratic coefficient is
Set
Then
These formulas make Definition def:jet independent of any external convention for quadratic Einstein coefficients.
As a check, substituting into (eq:G1explicit) yields
the identity used in Example ex:sourced.
Finally,
Thus the leading scalar source obeys the necessary flat conservation identity. This observation does not authorize zero metric Cauchy data for an arbitrary nonzero source: the gravitational constraint equations remain part of the choice of and .
Displayed formulas in this passage
VII-A@1#eq:RicciConvention · line 2189
VII-A@1#eq:Gamma1 · line 2200
VII-A@1#eq:Gamma2 · line 2200
VII-A@1#eq:R1 · line 2230
VII-A@1#eq:R2 · line 2238
VII-A@1#eq:r1 · line 2253
VII-A@1#eq:r2 · line 2253
VII-A@1#eq:G1explicit · line 2265
VII-A@1#eq:G2explicit · line 2265
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