English

Geometric Reid's recipe for dimer models

Algebraic Geometry 2021-06-01 v2 High Energy Physics - Theory

Abstract

Crepant resolutions of three-dimensional toric Gorenstein singularities are derived equivalent to noncommutative algebras arising from consistent dimer models. By choosing a special stability parameter and hence a distinguished crepant resolution YY, this derived equivalence generalises the Fourier-Mukai transform relating the GG-Hilbert scheme and the skew group algebra \CC[x,y,z]G\CC[x,y,z]\ast G for a finite abelian subgroup of \SL(3,\CC)\SL(3,\CC). We show that this equivalence sends the vertex simples to pure sheaves, except for the zero vertex which is mapped to the dualising complex of the compact exceptional locus. This generalises results of Cautis-Logvinenko and Cautis-Craw-Logvinenko to the dimer setting, though our approach is different in each case. We also describe some of these pure sheaves explicitly and compute the support of the remainder, providing a dimer model analogue of results from Logvinenko.

Keywords

Cite

@article{arxiv.1305.0156,
  title  = {Geometric Reid's recipe for dimer models},
  author = {Raf Bocklandt and Alastair Craw and Alexander Quintero Velez},
  journal= {arXiv preprint arXiv:1305.0156},
  year   = {2021}
}

Comments

29 pages, 5 figures, final version

R2 v1 2026-06-22T00:09:32.901Z