English

Transfer of Representations and Orbital Integrals for Inner Forms of $GL_n$

Representation Theory 2016-06-08 v1

Abstract

We characterize the Local Langlands Correspondence (LLC) for inner forms of GLnGL_n via the Jacquet-Langlands Correspondence (JLC) and compatibility with the Langlands Classification. We show that LLC satisfies a natural compatibility with parabolic induction and characterize LLC for inner forms as a unique family of bijections Π(GLr(D))Φ(GLr(D))\Pi(GL_r(D)) \to \Phi(GL_r(D)) for each rr, (for a fixed DD) satisfying certain properties. We construct a surjective map of Bernstein centers Z(GLn(F))Z(GLr(D))\mathfrak{Z}(GL_n(F))\to \mathfrak{Z}(GL_r(D)) and show this produces pairs of matching distributions. Finally, we construct explicit Iwahori-biinvariant matching functions for unit elements in the parahoric Hecke algebras of GLr(D)GL_r(D), and thereby produce many explicit pairs of matching functions.

Keywords

Cite

@article{arxiv.1606.02141,
  title  = {Transfer of Representations and Orbital Integrals for Inner Forms of $GL_n$},
  author = {Jon Cohen},
  journal= {arXiv preprint arXiv:1606.02141},
  year   = {2016}
}

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39 pages