Abstract
An identity of trace formulae which appears in the theory of base change forU(3) is proven for arbitrary matching functions, under no restriction on any component. The method requires no detailed analysis of weighted orbital integrals, or of orbital integrals of singular classes.
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Flicker, Y.Z. Base change trace identity forU(3). J. Anal. Math. 52, 39–52 (1981). https://doi.org/10.1007/BF02820471
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DOI: https://doi.org/10.1007/BF02820471