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arXiv 1503.00408math.GRmath.RT
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W-图理想与双理想

W-graph ideals and biideals

Robert B. Howlett, Van Minh Nguyen

摘要:

本文进一步发展了作者在文献[6]中首次提出的$W\!$ -图理想理论。讨论了抛物子群的$W\!$ -图子理想,以及$W\!$ -图理想的诱导和限制.我们引入$W\!$ -图双理想:那些产生$(W\times W^{\mathrm o})$ -图的$W\!$ -图理想,其中$W^{\mathrm o}$是与$W$相对的群.我们确定了秩为2的有限Coxeter群中的所有$W\!$ -图理想和双理想。

英文摘要:

We further develop the theory of $W\!$-graph ideals, first introduced by the authors in reference [6]. We discuss $W\!$-graph subideals, and induction and restriction of $W\!$-graph ideals for parabolic subgroups. We introduce $W\!$-graph biideals: those $W\!$-graph ideals that yield $(W\times W^{\mathrm o})$-graphs, where $W^{\mathrm o}$ is the group opposite to $W$. We determine all $W\!$-graph ideals and biideals in finite Coxeter groups of rank 2.

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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