Sean Hallgren at MSRI - Polynomial-time quantum algorithms for Pell's Equation and the principal ideal problem

<BODY> MSRI Streaming Video Series <BR> Sean Hallgren - Polynomial-time quantum algorithms for Pell's Equation and the principal ideal problem <BR> <center> A PDF version of the lecture notes is available <A HREF="http://www.msri.org/publications/ln/msri/2002/qcomplexity/hallgren/1/meta/aux/hallgren.pdf">here</A>. </center> </BODY>