Subject: [Fwd: Re: Cardy condition] From: jim stasheff Date: Wed, 20 Dec 2006 19:20:15 -0500 my memory is far from perfect > but I think the S1-bundle over S1 x S1 > with Chern class c_1 non zero has non-trivial Massey product does any one have a reference about the cell decomposition, (It's nicer if the cell decomposition comes from a Morse function. ) jim