Israel Journal of Mathematics

, Volume 178, Issue 1, pp 269-324

First online:

Distinction by the quasi-split unitary group

  • Hervé JacquetAffiliated withDepartment of Mathematics, Mathematics Building, 615, Columbia University Email author 

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In earlier work, we proved that any quadratic base change automorphic cuspidal representation of GL(n) is distinguished by a unitary group. Here we prove that we can take the unitary group to be quasi-split