Subject: query Date: Wed, 3 Sep 2003 13:25:39 -0400 (EDT) From: James Stasheff The primitive filtration of a Hopf algebra first occurs in _____________? The most readable source for a grad student would be ____________?? thanks mathscinet produced nothing! Jim Stasheff jds@math.upenn.edu Home page: www.math.unc.edu/Faculty/jds As of July 1, 2002, I am Professor Emeritus at UNC and I will be visiting U Penn but for hard copy the relevant address is: 146 Woodland Dr Lansdale PA 19446 (215)822-6707