Distinction of the Steinberg representation for inner forms of $GL(n)$
Representation Theory
2016-12-30 v2
Abstract
Let be a non archimedean local field of characteristic not . Let be a division algebra of dimension over its center , and a quadratic extension of . If is a positive integer, to a character of , one can attach the Steinberg representation of . Let be the group , we prove that is -distinguished if and only if is the quadratic character , where is the character of with kernel the norms of . We also get multiplicity one for the space of invariant linear forms. As a corollary, we see that the Jacquet-Langlands correspondence preserves distinction for Steinberg representations.
Keywords
Cite
@article{arxiv.1602.05101,
title = {Distinction of the Steinberg representation for inner forms of $GL(n)$},
author = {Nadir Matringe},
journal= {arXiv preprint arXiv:1602.05101},
year = {2016}
}
Comments
We corrected a mistake in Section 3.1