Non-commutative crepant resolutions for (almost) simplicial toric algebras
Algebraic Geometry
2026-02-26 v1
Abstract
Given a rational convex polyhedral Gorenstein cone constructed as cone over a lattice polytope P, we establish that toric non-commutative crepant resolutions (NCCRs) of its associated toric algebra descend to toric NCCRs of the algebras associated to faces of the polytope P. As consequence, we present two new, short proofs to the existence of toric NCCRs for simplicial affine toric Gorenstein algebras and for almost simplicial affine toric Gorenstein algebras, i.e. those associated to cones with extremal rays.
Keywords
Cite
@article{arxiv.2602.21802,
title = {Non-commutative crepant resolutions for (almost) simplicial toric algebras},
author = {Aimeric Malter and Artan Sheshmani},
journal= {arXiv preprint arXiv:2602.21802},
year = {2026}
}
Comments
14 pages, 2 figures. Comments welcome!