Subject: question for the mailing list Date: Thu, 12 Feb 2004 00:44:11 -0000 From: "Neil Strickland" To: "Don Davis" Let \eta : S^3 --> S^2 be the Hopf map, and let H : \Omega S^2 --> \Omega S^3 be the Hopf invariant. The map \Omega^3\eta \Omega^3 S^3 ---------------> \Omega^3 S^2 is an equivalence, and the map \Omega^2 H \Omega^3 S^2 ---------------> \Omega^3 S^3 is a 2-local equivalence. Can anyone tell me if the composite is 2-locally homotopic to the identity? Neil