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arXiv · 2109.07124

On certain supercuspidal representations of symplectic groups associated with tamely ramified extensions : the formal degree conjecture and the root number conjecture

Koichi Takase
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Abstract

The formal degree conjecture and the root number conjecture are verified with respect to supercuspidal representations of $Sp_{2n}(F)$ and $L$-parameters associated with tamely ramified extension $K/F$ of degree $2n$. The supercuspidal representation is constructed as a compact induction from an irreducible unitary representation of the hyper special compact group $Sp_{2n}(O_F)$, which is explicitly constructed, based upon the general theory developed by the author, by $K$ and certain character $\theta$ of the multiplicative group $K^{\times}$. $L$-parameter is constructed by the data $\{K,\theta\}$ by means of the local Langlands correspondence of tori and Langlands-Schelstad procedure.

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Koichi Takase. 2021-09-15. On certain supercuspidal representations of symplectic groups associated with tamely ramified extensions : the formal degree conjecture and the root number conjecture. https://arxiv.org/abs/2109.07124

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