Title:        Computing Riemann Surfaces for Factoring Bivariate
                Approximate Polynomials
  Authors:      Rob Corless
  Affiliation:  University of Western Ontario, Canada
  Abstract:
A new technique for factoring bivariate approximate polynomials rests on the
numerical construction of a substantial portion of the Riemann surface for the
function defined by one factor.  We discuss the reliability and complexity of
this technique.  Joint work with Mark Giesbrecht, Ilias Kotsireas, Mark van
Hoeij and Stephen Watt.