自共轭分拆的虚character和非零Kronecker系数
A virtual character and nonzero Kronecker coefficients for self-conjugate partitions
摘要:
推广了Regev关于$S_n$的一个虚特征标的结果.假设$λ$和$μ$是$n$的整数划分。对于$S_n$的关联不可约特征标$χ^λ$,当$χ^λ(μ)\neq0$时,我们找到与$λ$相关的另一个划分$τ$,使得$χ^τ(μ)\neq0$被虚拟特征标。应用这个结果,我们得到了一类非零的Kronecker系数Pak等人。的性格标准。此外,我们讨论了Pak等人的有效性。的性质标准。
英文摘要:
We generalize Regev's result on a virtual character of $S_n$. Suppose that $λ$ and $μ$ are integer partitions of $n$. For the associated irreducible character $χ^λ$ of $S_n$, when $χ^λ(μ)\neq0$ we find another partition $τ$ related to $λ$ such that $χ^τ(μ)\neq0$ by the virtual character. Applying this result, we obtain a class of nonzero Kronecker coefficients by Pak et al.'s character criterion. Moreover, we discuss the effectiveness of Pak et al.'s character criterion by a concrete example.
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。