Bill,
This is certainly not my area of expertise so I may
be especially unqualified to reply, but ...
I recall the following webpage from a forum
discussion and wonder if the ordering under Hilbert spaces,
might be helpful.
http://swiss.csail.mit.edu/~jaffer/Color/CSDR.html
(B=) <----------my "sig"
Brian Schott
Atlanta, GA, USA
schott DOT bee are eye eh en AT gee em ae eye el DOT com
http://schott.selfip.net/~brian/
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