Non-simply-laced Clusters of Finite Type via Frobenius Morphism
arXiv:math/0608114
Abstract
By showing the compatibility of folding almost positive roots and folding cluster categories, we prove that there is a one-to-one correspondence between seeds and tilting seeds in non-simply-laced finite cases.
15pages, also available at http://learn.tsinghua.edu.cn:8080/2002315664/dyang.htm