English

A proof of the Donaldson-Thomas crepant resolution conjecture

Algebraic Geometry 2018-10-31 v2

Abstract

We prove the crepant resolution conjecture for Donaldson-Thomas invariants of hard Lefschetz CY3 orbifolds, formulated by Bryan-Cadman-Young, interpreting the statement as an equality of rational functions. In order to do so, we show that the generating series of stable pair invariants on any CY3 orbifold is the expansion of a rational function. As a corollary, we deduce a symmetry of this function induced by the derived dualising functor. Our methods also yield a proof of the orbifold DT/PT correspondence for multi-regular curve classes on hard Lefschetz CY3 orbifolds.

Keywords

Cite

@article{arxiv.1810.06581,
  title  = {A proof of the Donaldson-Thomas crepant resolution conjecture},
  author = {Sjoerd Viktor Beentjes and John Calabrese and Jørgen Vold Rennemo},
  journal= {arXiv preprint arXiv:1810.06581},
  year   = {2018}
}

Comments

66 pages, 1 figure. Comments welcome. v2: references added