Working from the context, I'd guess: the tensor product between the components <i>dx<sup>a</sup></i> and <i>dx<sup>b</sup></i>of the stress energy tensor <i>T<sub>ab</sub></i>, but I've never been too sure about tensors.
I was lost in the introduction. The proposition of entropy causing action at a distance reminded me of a notorious demonstration. A beaker of water and a beaker of sugar dissolved in water are sealed together inside a bell jar. Over time the level of liquid in the beaker of water will drop and the level of liquid in the beaker of sugar water will rise. -- rec -- On Tue, Jul 13, 2010 at 7:30 PM, glen e. p. ropella < [email protected]> wrote: > > So, Verlinde lost me in section 4. But I usually try to continue reading > even if I don't understand (just like I continue talking about stuff I don't > understand ;-). And equation 5.35 (attached) had a surprise for me. What > is that ^ symbol between dx^a and dx^b? > > > -- > glen e. p. ropella, 971-222-9095, http://agent-based-modeling.com > > > ============================================================ > FRIAM Applied Complexity Group listserv > Meets Fridays 9a-11:30 at cafe at St. John's College > lectures, archives, unsubscribe, maps at http://www.friam.org >
============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives, unsubscribe, maps at http://www.friam.org
