Re: Some more elementary questions

Ken S. Tucker wrote:
<snip>

What you (Andy) and Dr.Green did for me is
crack a door, you guys deserve an explanation.
(For ref I'll use Dover's Principle of Relativity,
AE's GR1916 pg 152, Eq.(58) paraphrased,
T^ab = - g^ab P + p U^a U^b).

The LHS is often called stress-strain tensor,
a rose by any other name, AE calls it the
"energy tensor".

The 2nd RHS term is obviously symmetrical, so
eliminating that leaves the possibility of asymmetry
within what remains,

T^ab = - g^ab P

where "P" is pressure.

<snip>
IIRC, adding torsion to GR produces an asymmetric stress-energy tensor.




--
Andrew Resnick, Ph.D.
Department of Physiology and Biophysics
Case Western Reserve University
.

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