Date: Jun 15, 2013 4:18 AM
Author: Mark Roberts
Subject: computation of two-point objects

hello,   I have been stuck for decades trying to calculate the world function fords^2=-(1+2\sigma)dv^2+2dvdr+r(r-2\sigma v)(d\theta^2+\sin(\theta)^2d\phi^2)\phi=\n(1-2\sigma v/r)/2R_{ab}=2\phi_a\phi_bone gets elliptic functions if one try direct method,  The trouble withapproximations is that it is hard to tell if they converge.....bye,/\/\,-- Mark D. Robertshttp://www.violinist.com/directory/bio.cfm?member=robemarkhttp://dl.dropbox.com/u/75603589/cv.pdfhttp://independent.academia.edu/MarkRoberts/Talks/40121/Very_Short_Survey_of_all_my_Research