Re: Group theory riddle

On Nov 13, 6:30 am, Doug Sweetser <dougsweet...@xxxxxxxxx> wrote:
Hello:

Andrea asked the key question:

What's the prize?

If we went with the Grimm's fairytale package, I would collect
necklaces and rings, and for your daughter (if you have one), I would
not collect her first born son. Since this newsgroup is read by
thousands, I do not want the options to set up an orphanage. If
anyone does get the answer correctly, I will send them a button that
also has the answer printed on it. Deep truth in physics should be
compact enough to fit on a button (why more folks don't have their own
button making devices is a bit of a mystery, they are so fun). It is
considered against the spirit of the contest to Google for my name and
read what I have said on the topic.

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')

A good observation, followed by a solid guess, but not the one I was
looking for.

doug

t + xi + yj + zk?

- Shawn

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