Martins-Porter paper

jim stasheff wrote:

link didn't work even if I tacked the html onto the =

Sorry, the equals sign should not be there. Here's the link to the Martins-Porter paper on categorifying the Dijkgraaf-Witten model: http://golem.ph.utexas.edu/category/2006/08/categorifying_the_dijkgraafwit.h... and here, just for fun, is a letter from Grothendieck to Ronnie Brown: http://golem.ph.utexas.edu/category/2006/08/letter_from_grothendieck.html Best, jb