On depth zero L-packets for classical groups

On depth zero L-packets for classical groups
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关于经典群的深度零 L 包

DOI:
10.1112/plms.12340
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发表时间:
2020
影响因子:
1.8
通讯作者:
Lust J
Lust J
中科院分区:
数学1区
文献类型:
--
作者:
Lust J

文献摘要

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通过计算抛物诱导表示的可约点,我们构造了经典群(它可能不是准分裂的)在具有奇余特征的非阿基米德局部域上的任意深度零不可约尖端表示的朗兰兹参数,至多两个未分枝的二次特征标。由此,我们可以显式地描述包含一个、两个或四个包的并中的所有不可约尖点表示。这些结果将DeBacker-Reeder的工作(在经典群的情况下)从规则的驯服朗兰兹参数推广到任意驯服的朗兰兹参数。
By computing reducibility points of parabolically induced representations, we construct, to within at most two unramified quadratic characters, the Langlands parameter of an arbitrary depth zero irreducible cuspidal representationof a classical group (which may be not‐quasi‐split) over a non‐archimedean local field of odd residual characteristic. From this, we can explicitly describe all the irreducible cuspidal representations in the union of one, two, or four‐packets, containing. These results generalize the work of DeBacker–Reeder (in the case of classical groups) from regular to arbitrary tame Langlands parameters.