Bulletin of the Iranian Mathematical Society

Bulletin of the Iranian Mathematical Society

Strong exponent bounds for the local Rankin-Selberg convolution

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

Authors
Abstract
Let $F$ be a non-Archimedean locally compact field‎. ‎Let $\sigma$ and $\tau$ be finite-dimensional representations of the Weil-Deligne group of $F$‎. ‎We give strong upper and lower bounds for the Artin and Swan exponents of $\sigma\otimes\tau$ in terms of those of $\sigma$ and $\tau$‎. ‎We give a different lower bound in terms of $\sigma\otimes\check\sigma$ and $\tau\otimes\check\tau$‎. ‎Using the Langlands correspondence‎, ‎we obtain the bounds for Rankin-Selberg exponents‎.
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Volume 43, Issue 4 (Special Issue)
August 2017
Pages 143-167

  • Receive Date 15 May 2017
  • Revise Date 01 October 2017
  • Accept Date 19 May 2017