Manuscript XIX-E@1 · XIX-E.tex · definition · 702f146e
Definition: Clock criterion used for this comparison
Prescribed profiles, convolution, and clocks › External inputs are not matter-defined clocks · lines 319–328
XIX-E@1#def:clock
A dynamical scalar-clock prescription specifies a scalar functional of the dynamical configuration, a region on which its gradient is nonzero and timelike, an orientation, and a calibration.
A fixed external profile or a fixed smoothing operation is not such a prescription merely because coordinate time occurs in its definition.