2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/221996Using a homotopy approach, we prove in this paper a conjecture of Maulik, Nekrasov, Okounkov and Pandharipande on the dimension zero Donaldson-Thomas invariants of all smooth complex threefolds.This is the version published by Geometry & Topology on 29 November 2006Algebraic Geometry14D20, 14J60text