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北美退伍军人节(Veterans Day),12 日无更新
arXiv 2010.14636math.CO
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Young格上的上下算子

Up- and Down-Operators on Young's Lattice

Ricky Ini Liu, Christian Smith

摘要:

上操作符$u_i$和下操作符$d_i$(由Fomin引入为Schur操作符)通过在第$i$列中添加/删除框(如果可能)来作用于分区。众所周知,只有$u_i$满足(局部)plastic幺半群的关系,而本文作者最近证明了至多4次的关系足以描述上算子之间的所有关系.在这里,我们描述了代数生成的向上和向下运营商一起,表明它可以提出使用二次关系。

英文摘要:

The up-operators $u_i$ and down-operators $d_i$ (introduced as Schur operators by Fomin) act on partitions by adding/removing a box to/from the $i$th column if possible. It is well known that the $u_i$ alone satisfy the relations of the (local) plactic monoid, and the present authors recently showed that relations of degree at most 4 suffice to describe all relations between the up-operators. Here we characterize the algebra generated by the up- and down-operators together, showing that it can be presented using only quadratic relations.

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。

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