English

Cluster tilting for one-dimensional hypersurface singularities

Representation Theory 2010-11-01 v3 Algebraic Geometry

Abstract

In this article we study Cohen-Macaulay modules over one-dimensional hypersurface singularities and the relationship with the representation theory of associative algebras using methods of cluster tilting theory. We give a criterion for existence of cluster tilting objects and their complete description by homological methods, using higher almost split sequences and results from birational geometry. We obtain a large class of 2-CY tilted algebras which are finite dimensional symmetric and satisfy τ2=\id\tau^2=\id. In particular, we compute 2-CY tilted algebras for simple and minimally elliptic curve singularities.

Keywords

Cite

@article{arxiv.0704.1249,
  title  = {Cluster tilting for one-dimensional hypersurface singularities},
  author = {Igor Burban and Osamu Iyama and Bernhard Keller and Idun Reiten},
  journal= {arXiv preprint arXiv:0704.1249},
  year   = {2010}
}

Comments

32 pages