Mathematics – Representation Theory
Scientific paper
2010-12-21
International Mathematics Research Notices, July 6, 2011
Mathematics
Representation Theory
17 pages, new section added, references added
Scientific paper
10.1093/imrn/rnr129
Integral cluster categories of acyclic quivers have recently been used in the representation-theoretic approach to quantum cluster algebras. We show that over a principal ideal domain, such categories behave much better than one would expect: They can be described as orbit categories, their indecomposable rigid objects do not depend on the ground ring and the mutation operation is transitive.
Keller Bernhard
Scherotzke Sarah
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