Re: question on Laguerre polynomials of matrix argument

[thk (Tom H. Koornwinder)]

This is a forwarded message from Irving Segal <ies@math.mit.edu>.

	Tom Koornwinder <thk@wins.uva.nl>

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>From ies@math.mit.edu Mon Jan 19 08:45 MET 1998
To: thk@wins.uva.nl
Subject: Re:  question on Laguerre polynomials of matrix argument

	Thanks, good to know that we won't just be reproducing material in
the literature if we mount an attack on this problem.  
	It relates to the question of the kernel in momentum (i.e. dual) space
of the action on L2 over Minkowski space of the center of the maximal compact
subgroup of SU(2,2), in its action extending that of the Poincare group. The 
generator of the center one-parameter subgroup is a very good alternative to 
the usual Minkowskian time evolution group for fundamental physical temporal
evolution.
	Best wishes,
	Irving Segal