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DTSTART;TZID=Europe/Berlin:20260616T160000
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SUMMARY:International Seminar on Automorphic Forms
DESCRIPTION:A Geometric Approach to Ki’s L4 Norm Bound\nTrajan Hammonds (Aarhus) \nThe behavior of L^p norms of automorphic forms is a central topic in analytic number theory. In 2023\, Haseo Ki proved the Iwaniec-Sarnak conjecture for L4 norms for Hecke-Maass cusp forms\, long thought to be out of reach. In this talk\, I will present joint work with Anshul Adve\, along with work of Paul Nelson\, providing a new proof of Haseo Ki’s optimal L4 norm bound. The key novelty is avoiding a hands-on analysis of Bessel function asymptotics\, at least in the critical range. Instead we are able to recast the essential estimates into a simple problem in incidence geometry and solve it. \nZoom (680 4828 0736\, The password is the first Fourier coefficient of the modular j-function (as digits)).
URL:https://crc326gaus.de/event/international-seminar-on-automorphic-forms-17/
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