Re: Group theory riddle
- From: Andreas Most <Andreas.Most@xxxxxxxxx>
- Date: Mon, 12 Nov 2007 20:24:34 +0000 (UTC)
Doug Sweetser wrote:
Hello:
Here is a riddle that requires the creative application of group
theory to solve...
Riddle: An observer is sitting in a Universe at the point in spacetime
t=x=y=z=0, also refered to as here and now. The observer sees an
event. No one knows what caused this event, nor does one care.
Describe, as completely as possible, the event, using group theory.
The only "useful" information supplied is that your universe has
4 dimensions. My bet is that there is only one symmetry possible:
It is the reparametrization group that leaves the event invariant under
any coordinate transformation (x,y,z,t) -> (x',y',z',t')
Like Rumpelstiltskin before me, I do not think anyone will get the
correct technical answer in three tries, so I will provide the answer
in a week.
What's the prize?
Andreas.
.
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