English

On local newforms for unramified U(2,1)

Representation Theory 2011-06-29 v1 Number Theory

Abstract

Let G be the unramified unitary group in three variables defined over a p-adic field F of odd residual characteristic. In this paper, we investigate local newforms for irreducible admissible representations of G. We introduce a family of open compact subgroups {K_n} of G to define the local newforms for representations of G as the K_n-fixed vectors. We prove the existence of local newforms for generic representations and the multiplicity one property of the local newforms for admissible representations.

Keywords

Cite

@article{arxiv.1105.6004,
  title  = {On local newforms for unramified U(2,1)},
  author = {Michitaka Miyauchi},
  journal= {arXiv preprint arXiv:1105.6004},
  year   = {2011}
}

Comments

16 pages

R2 v1 2026-06-21T18:14:41.652Z