Time：15:00-16:00, Tuesday, September 15 2026
Venue：Room 206, Hai Na Yuan #2, Zijinggang Campus, Zhejiang University
Speaker：Dingxin Zhang, SIMIS
Title：Cohomological Divisibility of Exponential Sums
Abstract：Using the theory of the sheaf-theoretic Mellin transform of Gabber–Loeser, we prove that the Adolphson–Sperber p-adic bound for exponential sums holds for every individual ℓ-adic Frobenius eigenvalue attached to an exponential sum over F_q, uniformly for all ℓ not dividing q.
