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math.AG2009★ 51 cited
Motivic degree zero Donaldson-Thomas invariants
Kai Behrend, Jim Bryan, Balazs Szendroi
Given a smooth complex threefold X, we define the virtual motive of the Hilbert scheme of n points on X. In the case when X is Calabi-Yau, this gives a motivic refinement of the n-…
math.AG2009
BPS invariants for resolutions of polyhedral singularities
Jim Bryan, Amin Gholampour
We study the BPS invariants of the preferred Calabi-Yau resolution of ADE polyhedral singularities C^3/G given by Nakamura's G-Hilbert schemes. Genus 0 BPS invariants are defined b…