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arXiv · 1512.00508

Donaldson-Thomas invariants of Calabi-Yau orbifolds under flops

Yunfeng Jiang
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Abstract

We study the Donaldson-Thomas type invariants for the Calabi-Yau threefold Deligne-Mumford stacks under flops. A crepant birational morphism between two smooth Calabi-Yau threefold Deligne-Mumford stacks is called an orbifold flop if the flopping locus is the quotient of weighted projective lines by a cyclic group action. We prove that the Donaldson-Thomas invariants are preserved under orbifold flops.

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Yunfeng Jiang. 2015-12-01. Donaldson-Thomas invariants of Calabi-Yau orbifolds under flops. https://arxiv.org/abs/1512.00508

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