Talk:Khovanov homology

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I removed the statement "Khovanov's original formulation is slightly more general." following "This definition follows the formalism given in Dror Bar-Natan's paper." I'm presuming that this comment refers to the fact that Khovanov's original formulation was defined over Z[c], with c^2=0. Since then, it's been generally agreed that this c doesn't do much; in particular the resulting theory isn't functorial. --ScottMorrison 05:46, 2 February 2007 (UTC)