Magnification Cross Sections for the Elliptic Umbilic Caustic Surface
  We show that the asymptotic scaling of the magnification volume cross section
corresponding to an elliptic umbilic caustic surface is $\mu^{-2.5}$ in the
two-image region and $\mu^{-2}$ in the four-image region, where $\mu$ is the
total unsigned magnification.
