The orientifold CoHA structure conjecture

Let QQ be a σ\sigma-symmetric quiver, let V~Q\widetilde{V}_Q be the graded primitive object governing its CoHA, and let WQ,eprimW^{\mathsf{prim}}_{Q,e} be the primitive orientifold contribution for eΛQσ,+e\in\Lambda_Q^{\sigma,+}. Let HQ(e)\mathcal{H}_Q(e) denote the subalgebra used when HQ\mathcal{H}_Q is supercommutative.

Orientifold CoHA structure conjecture. The CoHA action map

eΛQσ,+Sym((V~Q)(Z2,e))WQ,eprimMQ\bigoplus_{e\in\Lambda_Q^{\sigma,+}}\operatorname{Sym}((\widetilde{V}_Q)_{(\mathbb{Z}_2,e)})\boxtimes W^{\mathsf{prim}}_{Q,e}\xrightarrow[]{\star}\mathcal{M}_Q

is an isomorphism in Dlb(VectZ)ΛQσ,+D^{lb}(\mathsf{Vect}_{\mathbb{Z}})_{\Lambda_Q^{\sigma,+}}. Moreover, if HQ\mathcal{H}_Q is supercommutative, then for each eΛQσ,+e\in\Lambda_Q^{\sigma,+} the restriction to HQ(e)WQ,eprim\mathcal{H}_Q(e)\boxtimes W^{\mathsf{prim}}_{Q,e} is a HQ(e)\mathcal{H}_Q(e)-module isomorphism onto its image.

This is the stronger structural form of the orientifold freeness prediction, describing the full CoHA action rather than only an abstract family of subalgebras. The supplied text gives no resolution status.

Sources & referencesView supporting material

Primary source

Matthew B. Young, “Representations of cohomological Hall algebras and Donaldson-Thomas theory with classical structure groups”, arXiv:1603.05401 (2016).

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