this is my current research notebook in blog form. entries are often at a stream-of-consciousness level but sometimes at a higher level of coherence.
Friday, March 18, 2011
??so(4,2) .... ????conformal compactification of flat (3,1) spacetime ... "event" corresponds to middle dot; "light ray" to both end dots together?? ... ???something about "twistor" ??? .....
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