arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1702.01221math.RAmath.ACmath.RT
收藏

关于簇代数的$C$ -矩阵的一个猜想

A conjecture on $C$-matrices of cluster algebras

Peigen Cao, Min Huang, Fang Li

摘要:

对于主系数为$t_0$的可斜对称的簇代数$\mathcal A_{t_0}$,证明了$\mathcal A_{t_0}$的每个种子$Σ_t$由它的{ \bf C-矩阵}唯一确定,这是Fomin和Zelevinsky在\cite{FZ3}中提出的一个猜想.我们的证明是基于这样一个事实,即集群变量的积极性和符号相干的$c$ -向量保持$\mathcal A_{t_0}$,这实际上是在\cite{GHKK}验证。在符号反对称情形下,进一步讨论了该猜想的弱形式,从而得到了一个结论。

英文摘要:

For a skew-symmetrizable cluster algebra $\mathcal A_{t_0}$ with principal coefficients at $t_0$, we prove that each seed $Σ_t$ of $\mathcal A_{t_0}$ is uniquely determined by its {\bf C-matrix}, which was proposed by Fomin and Zelevinsky in \cite{FZ3} as a conjecture. Our proof is based on the fact that the positivity of cluster variables and sign-coherence of $c$-vectors hold for $\mathcal A_{t_0}$, which was actually verified in \cite{GHKK}. More discussion is given in the sign-skew-symmetric case so as to obtain a conclusion as weak version of the conjecture in this general case.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑