Bulletin of the Iranian Mathematical Society

Bulletin of the Iranian Mathematical Society

Behavior of $R$-groups for $p$-adic inner forms of quasi-split special unitary groups

Document Type : Special Issue of BIMS in Honor of Professor Freydoon Shahidi

Authors
Abstract
‎We study $R$-groups for $p$-adic inner forms of quasi-split special unitary groups‎. ‎We prove Arthur's conjecture‎, ‎the isomorphism between the Knapp-Stein $R$-group and the Langlands-Arthur $R$-group‎, ‎for quasi-split special unitary groups and their inner forms‎. ‎Furthermore‎, ‎we investigate the invariance of the Knapp-Stein $R$-group within $L$-packets and between inner forms‎. ‎This work is applied to transferring known results in the second-named author's earlier work for quasi-split special unitary groups to their non-quasi-split inner forms‎.
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Volume 43, Issue 4 (Special Issue)
August 2017
Pages 117-141

  • Receive Date 13 May 2017
  • Revise Date 01 October 2017
  • Accept Date 19 May 2017