Abstract
Consider zero-dimensional Donaldson–Thomas invariants of a toric threefold or toric Calabi–Yau fourfold. In the second case, invariants can be defined using a tautological insertion. In both cases, the generating series can be expressed in terms of the MacMahon function. In the first case, this follows from a theorem of Maulik–Nekrasov–Okounkov–Pandharipande.
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