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arXiv 1508.03467math.QA
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簇代数与Snake模

Cluster algebras and snake modules

Bing Duan, Jian-Rong Li, Yan-Feng Luo

摘要:

由Mukhin和Young引入的Snake模形成了量子仿射代数的模族。证明了关于簇代数的么半群分解的Hernanal-Leclerc猜想对$A_{n}$和$B_{n}$型素蛇模成立.我们证明了素蛇模是真实的。引入了由$A_{n}$和$B_{n}$型素蛇模的$q$ -特征标所满足的方程组成的$S$ -系统.此外,我们表明,每一个方程的$S$ -系统的类型$A_n$(分别,$B_n$)对应于突变的集群代数$\mathscr{A}$(分别,$\mathscr{A}'$)所构建的Hernandez和Leclerc和每一个总理蛇模块的类型$A_n$(分别,PDMATHAMR)对应于一些集群变量的$\mathscr{A}$(分别,$\mathscr{A}'$)。特别地,这证明了Hernandel-Leclerc猜想对所有类型为$A_{n}$和$B_{n}$的素蛇模都成立。

英文摘要:

Snake modules introduced by Mukhin and Young form a family of modules of quantum affine algebras. The aim of this paper is to prove that the Hernandez-Leclerc conjecture about monoidal categorifications of cluster algebras is true for prime snake modules of types $A_{n}$ and $B_{n}$. We prove that prime snake modules are real. We introduce $S$-systems consisting of equations satisfied by the $q$-characters of prime snake modules of types $A_{n}$ and $B_{n}$. Moreover, we show that every equation in the $S$-system of type $A_n$ (respectively, $B_n$) corresponds to a mutation in the cluster algebra $\mathscr{A}$ (respectively, $\mathscr{A}'$) constructed by Hernandez and Leclerc and every prime snake module of type $A_n$ (respectively, $B_n$) corresponds to some cluster variable in $\mathscr{A}$ (respectively, $\mathscr{A}'$). In particular, this proves that the Hernandez-Leclerc conjecture is true for all prime snake modules of types $A_{n}$ and $B_{n}$.

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