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

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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

  • unlabeled · line 2221

  • unlabeled · line 2283

  • unlabeled · line 2292