[Fis] Minkowski space measurable ? (was: Re: Information and communication)

To: <fis@listas.unizar.es>
Subject: [Fis] Minkowski space measurable ? (was: Re: Information and communication)

Dear Loet,

You wrote:
> In a more abstract formulation one can model a time-space event in a
> four-dimensional hyperspace. A four-dimensional probability distribution
> allows us to compute with a four-dimensional probablistic entropy:
>
> H = - Sum(ijkl) p(ijkl) log (p(ijkl)

I am not a specialist of relativity. In the non relativistic model,
time and space are usually mixed via stochastic processes rather
than via 4-dimensional distributions. Now moving to some Minkowski
space, we have to exhibit a sigma-algebra before speaking of any
probability law. May be FISers aware of this stuff could tell us
whether or not the Minkowski space is indeed measurable ?

Michel Petitjean Email: petitjean@itodys.jussieu.fr
Editor-in-Chief of Entropy entropy@mdpi.org
ITODYS (CNRS, UMR 7086) ptitjean@ccr.jussieu.fr
1 rue Guy de la Brosse Phone: +33 (0)1 44 27 48 57
75005 Paris, France. FAX : +33 (0)1 44 27 68 14
http://www.mdpi.net http://www.mdpi.org
http://petitjeanmichel.free.fr/itoweb.petitjean.html
http://petitjeanmichel.free.fr/itoweb.petitjean.freeware.html
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Received on Thu May 27 09:37:26 2004