Subject: query Date: Tue, 10 Feb 2004 15:44:05 -0500 (EST) From: James Stasheff What is known about higher order whitehead products (secondary and higher) in the homotopy groups of spheres? 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