Langlands parameters associated to special maximal parahoric spherical representations
Abstract
We describe the image, under the local Langlands correspondence for tori, of the characters of a torus which are trivial on its Iwahori subgroup. Let be a non-archimedian local field. Let be a connected reductive group defined over , which is quasi-split and split over a tamely ramified extension. Let be a special maximal parahoric subgroup of . To the class of representations of , having a non-zero vector fixed under , we establish a bijection, in a natural way, with the twisted semi-simple conjugacy classes of the inertia fixed subgroup of the dual group . These results generalize the well known classical results to the ramified case.
Cite
@article{arxiv.1212.0273,
title = {Langlands parameters associated to special maximal parahoric spherical representations},
author = {Manish Mishra},
journal= {arXiv preprint arXiv:1212.0273},
year = {2013}
}
Comments
9 pages. Accepted for publication in the Proceedings of the American Mathematical Society. Section 5 added to provide references to the facts used in Proposition 11. Theorem-2 stated in a more natural way. Typos fixed