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A note on Poisson summation for GL(2) (2510.02273v1)
Published 2 Oct 2025 in math.NT and math.RT
Abstract: Using analytic number theory techniques, Altu\u{g} showed that the contribution of the trivial representation to the Arthur-Selberg trace formula for GL(2) over $\Q$ could be cancelled by applying a modified Poisson summation formula to the regular elliptic contribution. Drawing on recent works, we re-examine these methods from an adelic perspective.
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