Minets' critical CoHA conjecture for zero-dimensional sheaves

Let XX be a quasiprojective 33-Calabi–Yau variety. Let W+(X)\operatorname{W}^+(X) be the algebra generated by symbols Tm+(λ)T_m^+(\lambda), with mNm\in\mathbb{N} and λH(X,Q)\lambda\in\operatorname{H}(X,\mathbb{Q}), subject to the stated multilinearity and commutator relations involving c2(X)c_2(X), the diagonal class ΔX\Delta_X, and the symmetric-group relation. Minets' critical CoHA conjecture. There is an isomorphism of algebras

HXcritW+(X).\mathcal{H}_X^{\operatorname{crit}}\cong\operatorname{W}^+(X).

The conjecture proposes an explicit presentation of the critical CoHA of zero-dimensional sheaves on a quasiprojective 33-Calabi–Yau variety.

Sources & referencesView supporting material

Primary source

Ben Davison, “BPS cohomology in geometry and representation theory”, arXiv:2601.08004 (2026).

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