Resultants of Polynomials with Two Separated Variables

Tuesday, May 29, 2007 - 1:30pm - 2:00pm
EE/CS 3-180
Andre Galligo (Université de Nice Sophia Antipolis)
The intersection curve C of two surfaces parameterized by
is defined by 3 equations:

F(s,t) = G(u,v)

and its geometry can be studied via its projection E on the

The equation of E is obtained by elimination of the two
separated variables
t and v. This is done by the computation of a special
bi-variate resultant.

I will present this new resultant which was introduced in a
joint paper with
L. Buse and M. Elkadi and further studied in a joint work with
M. Elkadi.