Reiner, Stanton and White (2004)  proved results regarding the enumeration of polygon dissections up to rotational symmetry. Eu and Fu (2008)  generalized these results to Cartan-Killing types other than A by means of actions of deformed Coxeter elements on cluster complexes of Fomin and Zelevinsky (2003) . The Reiner-Stanton-White and Eu-Fu results were proven using direct counting arguments. We give representation theoretic proofs of closely related results using the notion of noncrossing and seminoncrossing tableaux due to Pylyavskyy (2009)  as well as some geometric realizations of finite type cluster algebras due to Fomin and Zelevinsky (2003) . © 2010 Elsevier Inc. All rights reserved.
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