English

Gamma factors for Asai representations of ${\rm GL}_2$

Number Theory 2018-10-31 v1

Abstract

Let EE be a quadratic semisimple extension of a local field FF of characteristic zero. We determine explicit relation between gamma factors for Asai representations of RE/FGL2/ER_{E/F}{\rm GL}_{2/E} defined by the Weil-Deligne representations and local zeta integrals. When E=F×FE = F\times F, the results were due to Henniart and Jacquet. We completed the theory in this article based on explicit calculation.

Keywords

Cite

@article{arxiv.1810.12561,
  title  = {Gamma factors for Asai representations of ${\rm GL}_2$},
  author = {Shih-Yu Chen and Yao Cheng and Isao Ishikawa},
  journal= {arXiv preprint arXiv:1810.12561},
  year   = {2018}
}