On the Rankin-Selberg gamma factor of simple supercuspidal representations of the unitary group for $p$-adic local fields

Fuente: arXiv
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Main Authors: Barron, Philip, Xin, Yu
Format: Preprint
Published: 2024
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author Barron, Philip
Xin, Yu
author_facet Barron, Philip
Xin, Yu
contents Let $π$ be a simple supercuspidal representation of the quasi-split unramified even unitary group with respect to an unramified quadratic extension $E/F$ of $p$-adic fields. We compute the Rankin-Selberg gamma factor for rank-$1$ twists of $π$ by a tamely ramified character of $E^\times$. For non-dyadic cases, the gamma factor can also be recovered by considering the endoscopic lift of the representation. For the dyadic case, the result is original and we expect to extend the results on the Langlands parameter of the simple supercuspidal representations to the dyadic case with our computation.
format Preprint
id arxiv_https___arxiv_org_abs_2410_11995
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle On the Rankin-Selberg gamma factor of simple supercuspidal representations of the unitary group for $p$-adic local fields
Barron, Philip
Xin, Yu
Number Theory
Representation Theory
Let $π$ be a simple supercuspidal representation of the quasi-split unramified even unitary group with respect to an unramified quadratic extension $E/F$ of $p$-adic fields. We compute the Rankin-Selberg gamma factor for rank-$1$ twists of $π$ by a tamely ramified character of $E^\times$. For non-dyadic cases, the gamma factor can also be recovered by considering the endoscopic lift of the representation. For the dyadic case, the result is original and we expect to extend the results on the Langlands parameter of the simple supercuspidal representations to the dyadic case with our computation.
title On the Rankin-Selberg gamma factor of simple supercuspidal representations of the unitary group for $p$-adic local fields
topic Number Theory
Representation Theory
url https://arxiv.org/abs/2410.11995