Grigoriy Glekherman at MSRI - There are Significantly More Nonnegative Polynomials Than Sums of Squares

<BODY> MSRI Streaming Video Series <BR> Grigoriy Glekherman - There are Significantly More Nonnegative Polynomials Than Sums of Squares <BR> <center> A PDF version of the lecture notes is available <A HREF="http://www.msri.org/publications/ln/msri/2004/acarag/blekherman/1/meta/aux/blekherman.pdf">here</A>. </center> </BODY>