On smoothing singularities of elliptic orbital integrals on GL(n) and Beyond Endoscopy
Abstract
Recent work of Altug continues the preliminary analysis of Langlands' Beyond Endoscopy proposal for GL(2) by removing the contribution of the trivial representation to the trace formula using a Poisson summation formula. We show that Altug's method of smoothing real elliptic orbital integrals by an approximate functional equation extends to GL(n). We also discuss the case of an arbitrary reductive group, and remaining obstructions for applying Poisson summation.
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