John Baez at MSRI - n-Categories in Homology Theory

<BODY> MSRI Streaming Video Series <BR> John Baez - n-Categories in Homology Theory <BR> <center> A PDF version of the lecture notes is available <A HREF="http://www.msri.org/publications/ln/msri/2002/hodgetheory/baez/1/meta/aux/baez.pdf">here</A>. </center> </BODY>