The World Function in Robertson-Walker Spacetime
arXiv:gr-qc/9905005
Abstract
A method for finding the world function of Robertson-Walker spacetimes is presented. It is applied to find the world function for the $k=0, \ga=2$, solution. The close point approximation for the Robertson-Walker world function is calculated upto fourth order.
12 pages, no diagrams or tables, Latex2e