On L-factors attached to generic representations of unramified U(2,1)

Abstract

Let G be the unramified unitary group in three variables defined over a p-adic field of odd residual characteristic. In this paper, we establish a theory of newforms for the Rankin-Selberg integral for G introduced by Gelbart and Piatetski-Shapiro. We describe L and epsilon-factors defined through zeta integrals in terms of newforms. We show that zeta integrals of newforms for generic representations attain L-factors. As a corollary, we get an explicit formula for epsilon-factors of generic representations.

arXiv comment19 pages

References in corpus (3)

• On epsilon factors attached to supercuspidal representations of unramified U(2,1)
• Conductors and newforms for non-supercuspidal representations of unramified U(2,1)
• On local newforms for unramified U(2,1)