Subject: Question for the mailing list Date: Wed, 25 Feb 2004 16:44:33 -0500 From: Greg Arone To: dmd1@Lehigh.EDU Suppose E is a finite spectrum with an action of a finite group G (Not necessarily equivalent to a finite free G-spectrum). Suppose that the homotopy orbit spectrum E \smash_{G} EG_+ is contractible. Does it follow that the homotopy orbits of the dual spectrum D(E) \smash_G EG_+ is contractible? Here D(E) is the SW dual of E. If it is not true in general, can one give sufficient conditions on E for this to be true?