Trace and cotrace conjecture for sutured monopole Floer homology

Let (M,γ)(M,\gamma) be a balanced sutured manifold, and let W=(W=M×[0,1],Z=M×[0,1],[ξ])\mathcal{W}=(W=M\times[0,1],Z=\partial M\times[0,1],[\xi]) be the trace sutured cobordism from (M(M),γ(γ))(M\sqcup(-M),\gamma\cup(-\gamma)), with ξ\xi a [0,1][0,1]-invariant contact structure on ZZ. Let R\mathcal{R} be the coefficient ring, let

i:SHM(M(M),γγ)SHM(M,γ)SHM(M,γ)i:\underline{\operatorname{SHM}}(M\sqcup(-M),\gamma\cup\gamma)\longrightarrow\underline{\operatorname{SHM}}(M,\gamma)\otimes\underline{\operatorname{SHM}}(-M,\gamma)

be the map from the Künneth formula, and define

tr:SHM(M,γ)SHM(M,γ)R,tr(ab)=b(a).\operatorname{tr}:\underline{\operatorname{SHM}}(M,\gamma)\otimes\underline{\operatorname{SHM}}(-M,\gamma)\longrightarrow\mathcal{R},\qquad \operatorname{tr}(a\otimes b)=b(a).

Here SHM(M,γ)\underline{\operatorname{SHM}}(-M,\gamma) is the dual of SHM(M,γ)\underline{\operatorname{SHM}}(M,\gamma). Trace and cotrace conjecture. With these settings,

SHM(W)=tri.\underline{\operatorname{SHM}}(\mathcal{W})=\operatorname{tr}\circ i.

The conjecture identifies the cobordism map of the trace cobordism with the canonical evaluation map after the Künneth map. The source gives no evidence of a resolution, so the status remains open.

Sources & referencesView supporting material

Primary source

Zhenkun Li, “Gluing maps and cobordism maps for sutured monopole Floer homology”, arXiv:1810.13071 (2019).

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