Manuscript XII-C@1 · XII-C.tex · section · dead1004

Euler operators and the unchanged matter defect

C2: the changed fixed-background Noether identity › Euler operators and the unchanged matter defect · lines 800–877

XII-C@1#eq:scalar-euler, XII-C@1#eq:Z, XII-C@1#eq:eD, XII-C@1#eq:Noperators, XII-C@1#eq:matterdefect

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Define

The scalar equation is unchanged. Explicitly,

Put and

The exact formal metric derivative is

where

In particular, for coupling-independent fields,

For a symmetric contravariant density , set

Thus .

The unchanged scalar-background defect is

The derivative-of-switch term remains visible. There are no derivatives of in the metric variation of the minimally coupled scalar density itself.

Displayed formulas in this passage

  • XII-C@1#eq:scalar-euler · line 810

  • XII-C@1#eq:Z · line 821

  • XII-C@1#eq:eD · line 827

  • XII-C@1#eq:Noperators · line 852

  • XII-C@1#eq:matterdefect · line 866

  • unlabeled · line 803

  • unlabeled · line 836

  • unlabeled · line 844