关于秩二无环簇代数的簇变量
组合数学
2010-08-13 v2
摘要
本文找到了与矩阵相关的无系数秩二簇代数的簇变量的洛朗展开显式公式,并证明了大量系数是非负的。作为推论,我们得到了相应箭图格拉斯曼流形的欧拉-庞加莱特征的显式表达式。
引用
@article{arxiv.1008.1829,
title = {On cluster variables of rank two acyclic cluster algebras},
author = {Kyungyong Lee},
journal= {arXiv preprint arXiv:1008.1829},
year = {2010}
}
备注
10 pages, thanks to referees, typos corrected, credits given, references added, follow-up is given in "Strong sign-coherency of certain symmetric polynomials, with application to cluster algebras" (arxiv preprint)