Cluster tilting and complexity
Category Theory
2010-01-06 v1 Rings and Algebras
Abstract
We study the notion of positive and negative complexity of pairs of objects in cluster categories. The first main result shows that the maximal complexity occurring is either one, two or infinite, depending on the representation type of the underlying hereditary algebra. In the the second result, we study the bounded derived category of a cluster tilted algebra, and show that the maximal complexity occurring is either zero or one whenever the algebra is of finite or tame type.
Cite
@article{arxiv.1001.0758,
title = {Cluster tilting and complexity},
author = {Petter Andreas Bergh and Steffen Oppermann},
journal= {arXiv preprint arXiv:1001.0758},
year = {2010}
}
Comments
11 pages