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arXiv 1502.01868math.RT
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有限酉群的非定义特征的分支图

Branching graphs for finite unitary groups in non-defining characteristic

Thomas Gerber, Gerhard Hiss

摘要:

我们证明了有限酉群的幂幺模的模分支规则(在Harish-Chandra意义上)在有利的条件下可以由精心选择的Fock空间的晶体图的特定连通分量分段描述。此外,对于亏度为0的尖点模所产生的模,我们给出了从一个模到另一个模的组合公式。这部分证明了Jacon和作者最近的一个猜想。

英文摘要:

We show that the modular branching rule (in the sense of Harish-Chandra) on unipotent modules for finite unitary groups is piecewise described by particular connected components of the crystal graph of well-chosen Fock spaces, under favourable conditions. Besides, we give the combinatorial formula to pass from one to the other in the case of modules arising from cuspidal modules of defect 0. This partly proves a recent conjecture of Jacon and the authors.

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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